A viewset for viewing and editing Mnemonic Devices.

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                "id": 149,
                "name": "JpAshik",
                "start_year": 1336,
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                "long_name": "Ashikaga Shogunate",
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                "general_description": "The period between 1336 and 1467 CE in Japan is known by several different names but is referred to here as 'Muromachi Ashikaga', a combination of two designations used in isolation in some sources. Muromachi, a district of Kyoto, was the base of the shogunate's power, while Ashikaga is the name of the family who served as shoguns throughout the period. §REF§ (Deal 2005, 3) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  The Muromachi Ashikaga period sometimes includes the sub-periods known as 'the Northern and Southern Courts' and the 'Warring States', although we have decided to separate the Warring States period into its own polity. §REF§ (Deal 2005, 3) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§ <br>The period begins with the disintegration of Emperor Go-Daigo's brief 'Kenmu Restoration', an unsuccessful attempt to restore direct imperial control in Japan, and the appointment of Ashikaga Takauji as shogun by another branch of the imperial line with the support of other disillusioned lords. §REF§ (Deal 2005, 88) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  This initiated the divide between the Northern and Southern Courts (1336-1392 CE), both of which claimed to be the legitimate ruling authority. The Northern Court was located in Kyoto and headed by Emperor Komyo (from the senior imperial line) and the Ashikaga shoguns. The Southern Court was located at Yoshino and was the seat of the Emperor Go-Daigo (from the junior imperial line) and his supporters. §REF§ (Deal 2005, 7) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§ <br>The peak of the Ashikaga period corresponds to the reign of Shogun Yoshimitsu (r. 1368-1394 CE), who helped to broker the unification of the Northern and Southern Courts (1392 CE), with imperial succession reinstated through the Northern line. An able statesman, he helped advance many aspects of government and policy and was an active patron of the arts. §REF§ (Deal 2005, 8) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  His death in 1408 left a power vacuum that enabled provincial lords to gain greater independence from the court and shogunate.<br>The Onin War (1467-1477 CE) effectively brought an end to this period, although the Ashikaga shogunate remained in power nominally until the overthrow of their last shogun by Oda Nobunaga in 1573. §REF§ (Deal 2005, 9) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  This civil war, precipitated by economic problems, famine and conflicts over succession (both to the shogunate and to provincial military offices) initiated the period of instability known as the Warring States period. The conflict destroyed much of Kyoto, and spilled out into the provinces. §REF§ (Deal 2005, 8) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§ <br>Initially, the power of the Ashikaga Shogunate had theoretically extended throughout the main islands of Japan; however, by the time of the Onin War, the area under its direct control had shrunk to Kyoto and its hinterland. §REF§ (Totman 1993, 3-4) Conrad Totman. 1993. <i>Early Modern Japan</i>. Berkeley, CA: University of California Press. §REF§  §REF§ (Hall 2008, 216) John Whitney Hall. 2008. 'The Muromachi Bakufu', in <i>The Cambridge History of Japan, Vol. 3: Medieval Japan</i>, edited by Kozo Yamamura, 231-59. Cambridge: Cambridge University Press. §REF§  Despite this territorial disintegration, the 'idea' of a larger unified culture did not disappear. §REF§ (Batten 1999, 175) Bruce Batten. 1999. 'Frontiers and Boundaries of Pre-Modern Japan'. <i>Journal of Historical Geography</i> 25 (2): 166-82. §REF§ <br><i>Population and political organization</i><br>During the period of the Northern and Southern Courts, the respective imperial heads were nominally in power, while the Ashikaga shogunate controlled the government. In contrast to the preceding Kamakura military regime, the Ashikaga shoguns did not have absolute control: their power was in tension with 'other court families, other members of the military aristocracy, and the religious orders'. §REF§ (Hall 2008, 10) John Whitney Hall. 2008. 'Introduction', in <i>The Cambridge History of Japan, Vol. 4: Early Modern Japan</i>, edited by Kozo Yamamura, 1-39. Cambridge: Cambridge University Press. §REF§  Initially the Ashikaga shogunate retained much of the Kamakura administrative structure, even continuing to occupy the government buildings in Kamakura before moving their administration to the Muromachi district in 1378 CE. §REF§ (Deal 2005, 7-8) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  Because the Ashikaga clan 'lacked significant landholdings and military might', these shoguns relied on their relationships with powerful vassals and provincial military governors to enforce their policies and keep other lords in line. However, as personal ties of loyalty deteriorated over time, the control of the shogunate over powerful provincial lords loosened and the latter were able to increase their independence from the central government. §REF§ (Deal 2005, 7-8) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  §REF§ (Friday 2004, 59) Karl F. Friday. 2004. <i>Samurai, Warfare and the State in Early Medieval Japan</i>. New York: Routledge. §REF§ <br>Population estimates for this period range from roughly 10 million around 1300 CE to approximately 17 million in 1500 CE. §REF§ (McEvedy and Jones 1978, 181) Colin McEvedy and Richard Jones. 1978. <i>Atlas of World Population History</i>. London: Penguin Books. §REF§  §REF§ (Farris 2006, 94) William Wayne Farris. 2006. <i>Japan's Medieval Population: Famine, Fertility, and Warfare in a Transformative Age</i>. Honolulu: University of Hawaii Press. §REF§ ",
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                "long_name": "Early Merovingian",
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                "general_description": "In the early Merovingian period (481-543 CE), numerous Frankish kingdoms were united under the nominal leadership of Clovis I, who is traditionally considered to have become king of the Salian Franks in 481 CE. §REF§ (Drew 1991, 5) Drew, Katherine Fischer. 1991. “Introduction.” In The Laws of the Salian Franks: Translated and with an Introduction by Katherine Fischer Drew, 1-56. Philadelphia, PA: University of Pennsylvania Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/BT6A8ZH6\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/BT6A8ZH6</a>. §REF§  Under Clovis, the capital moved from Tournai to Paris. §REF§ (Wood 1994, 41) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  §REF§ (DeVries and Smith 2007, 230) DeVries, Kelly, and Robert D. Smith. 2007. Medieval Weapons: An Illustrated History of Their Impact. Santa Barbara, CA: ABC-CLIO. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ZDQNCFQQ\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ZDQNCFQQ</a>. §REF§ <br><i>Population and political organization</i><br>Merovingian France was a largely decentralized kingdom based on the pre-existing Roman administrative system, in which cities were the basic units. §REF§ (Loseby 1998, 245-49) Loseby, S. T. 1998. “Gregory’s Cities: Urban Functions in Sixth-Century Gaul.” In Franks and Alamanni in the Merovingian Period: An Ethnographic Perspective, edited by I. N. Wood, 239-69. Woodbridge: Boydell Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS</a>. §REF§  The city rulers, known as counts or <i>grafio</i>, who sent the king his tax revenue and carried out judicial and administrative functions, had access to both administrative officials and city archives (<i>gesta municipalia</i>). §REF§ (Wood 1994, 204) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  §REF§ (Loseby 1998, 245-49) Loseby, S. T. 1998. “Gregory’s Cities: Urban Functions in Sixth-Century Gaul.” In Franks and Alamanni in the Merovingian Period: An Ethnographic Perspective, edited by I. N. Wood, 239-69. Woodbridge: Boydell Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS</a>. §REF§  Groups of cities and counts could be placed under a duke for military and administrative purposes. §REF§ (Bachrach 1972, 67) Bachrach, Bernard S. 1972. Merovingian Military Organization 481-751. Minneapolis, MN: University of Minnesota Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/SG5XNFPG\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/SG5XNFPG</a>. §REF§ <br>In contrast, there was no elaborate central administration, the highest non-royal official being a figure known as the mayor of the palace. §REF§ (Halsall 2003, 28) Halsall, Guy. 2003. Warfare and Society in the Barbarian West, 450-900. London: Routledge. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/Z5EZBP2R\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/Z5EZBP2R</a>. §REF§  The king's capital and main residence was at Paris, where the population may have reached 30,000 by the 8th century CE, §REF§ (Clark and Henneman, Jr. 1995, 1316) Clark, William W., and John Bell Henneman, Jr. 1995. “Paris.” In Medieval France: An Encyclopedia, edited by William W. Kibler, Grover A. Zinn, Lawrence Earp, and John Bell Henneman, Jr., 1314-30. New York: Garland Publishing. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/HS8644XK\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/HS8644XK</a>. §REF§  although the court was always a peripatetic institution. §REF§ (Wood 1994, 150-53) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  The king consulted a group of magnates (<i>obtimates</i>) at an annual gathering around 1 March. Written references to royal edicts are known from 614 CE onwards, but earlier royal legislation has not survived. §REF§ (Fouracre 1998, 286-89) Fouracre, P. J. 1998. “The Nature of Frankish Political Institutions in the Seventh Century.” In Franks and Alamanni in the Merovingian Period: An Ethnographic Perspective, edited by Ian Wood, 285-316. Woodbridge: Boydell Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GT2AINW4\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GT2AINW4</a>. §REF§  Merovingian kings had the authority to appoint dukes and counts as well as bishops, who were often 'royal servants with no known connections with their sees'. §REF§ (Wood 1994, 78) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§ <br>From 622 CE onwards the basic territorial divisions of the Merovingian Kingdom were Neustria (centred on the Seine and Oise rivers and associated with the <i>Pactus Legis Salicae</i> law code), §REF§ (Wood 1994, 112-15) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  Burgundy (where the <i>Liber Constitutionum</i> was developed), and Austrasia (by the Rhine and Meuse, which came to possess its own mayor of the palace §REF§ (Fanning 1995, 157) Fanning, Steven. 1995. “Austrasia.” In Medieval France: An Encyclopedia, edited by William W. Kibler, Grover A. Zinn, Lawrence Earp, and John Bell Henneman, Jr., 156-57. New York: Garland Publishing. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR2MKFDX\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR2MKFDX</a>. §REF§  and followed the Lex Ribvaria). §REF§ (Wood 1994, 112-15) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  A fourth area, Aquitaine, had a special status due to its distance from the royal centres and was under less direct Merovingian control. §REF§ (Wood 1994, 100, 146) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  In the earliest times, Merovingian administration beyond the Rhine (in modern-day Germany) was less elaborate than that imposed further to the west: counts sent to rule in the east did not attempt to introduce literacy, currency or Christianity to their domains. §REF§ (Anderson 2013, 126-27) Anderson, Perry. 2013. Passages from Antiquity to Feudalism. London: Verso. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/K6F5NBFF\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/K6F5NBFF</a>. §REF§ ",
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                "name": "JpHeian",
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                "general_description": "The Heian period (794-1185 CE) began when the Emperor Kammu (r. 781-806 CE) moved the capital from Nara to Heian (Kyoto) in 794 CE. The imperial court maintained centralized control over the main islands of Japan and was the centre of a vast, highly bureaucratic administration system. §REF§ (Deal 2005, 89) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  §REF§ (Mason 2011, 67) Richard H. P. Mason. 2011. <i>A History of Japan</i>. Revised ed. New York: Tuttle Publishing. §REF§  The period's peak can be considered to run from 794 to 930 CE, a phase of prosperity and cultural and artistic florescence. §REF§ (Shively and McCullough 2008, 1-2) Donald H. Shively and William H. McCullough. 2008. <i>The Cambridge History of Japan, Vol. 2: Heian Japan</i>. Cambridge: Cambridge University Press. §REF§  However, the imperial court's isolation from the realities of government, elaborate internal power dynamics and court intrigues eventually weakened the central government and contributed to the rise of the provincial warrior class. §REF§ (Henshall 2012, 29-30) Kenneth Henshall. 2012. <i>A History of Japan: From Stone Age to Superpower</i>. 3rd ed. New York: Palgrave Macmillan. §REF§  The period ends with the establishment of the Kamakura Shogunate.<br><i>Population and political organization</i><br>Beginning in the proceeding Nara period, the imperial court had based its bureaucratic system on that of the 'statutory' (<i>ritsuryō</i>) regime of the Chinese T'ang court. The Nara style of administration continued to be implemented by the Heian emperors until the 850s CE. While the government still maintained 'the conception and rhetoric of Confucian government', its functions were carried out by other means, with increased competition for offices, and, due to the dominance of the Fujiwara family, an increasingly narrow focus on factional concerns. §REF§ (Shively and McCullough 2008, 342-43) Donald H. Shively and William H. McCullough. 2008. <i>The Cambridge History of Japan, Vol. 2: Heian Japan</i>. Cambridge: Cambridge University Press. §REF§  §REF§ (Mason 2011, 64) Richard H. P. Mason. 2011. <i>A History of Japan</i>. Revised ed. New York: Tuttle Publishing. §REF§  Although knowledge of Chinese culture had been considered the mark of a cultured individual for much of the Heian period, by its end a distinctly Japanese cultural identity had started to emerge. §REF§ (Henshall 2012, 30) Kenneth Henshall. 2012. <i>A History of Japan: From Stone Age to Superpower</i>. 3rd ed. New York: Palgrave Macmillan. §REF§ <br>Over the course of the Heian period, the imperial family and nobility became increasingly divorced from the realities of government, preoccupying themselves with 'dilettantish pastimes' and matters of protocol above matters of state. While this led to a florescence of the arts and the refinement of etiquette, it also indirectly allowed the provincial warrior class to increase their power because the day-to-day tasks of governance in the provinces were left to them. §REF§ (Henshall 2012, 28-29) Kenneth Henshall. 2012. <i>A History of Japan: From Stone Age to Superpower</i>. 3rd ed. New York: Palgrave Macmillan. §REF§  Another factor in the rise and consolidation of power by the warrior class at the expense of the nobility was the changing patterns of land ownership. By the late 10th century CE, with the end of public land allotment, private land ownership had proliferated, much of which was exempt from taxation, significantly affecting the revenue of the government. The nobles' presence at court meant that vast private land holdings were controlled by estate managers on behalf of absentee landlords - further weakening the centralized government and contributing to the emergence of feudalism in Japan. §REF§ (Mason 2011, 76) Richard H. P. Mason. 2011. <i>A History of Japan</i>. Revised ed. New York: Tuttle Publishing. §REF§  §REF§ (Henshall 2012, 29) Kenneth Henshall. 2012. <i>A History of Japan: From Stone Age to Superpower</i>. 3rd ed. New York: Palgrave Macmillan. §REF§  The personal power of the emperors also waned throughout the period, with the rising prominence of imperial regents, consolidating the power of the Fujiwara family, and the early abdication of emperors in attempts to form a 'cloister government' to counter the Fujiwara regents' control of young puppet rulers. §REF§ (Henshall 2012, 29-30) Kenneth Henshall. 2012. <i>A History of Japan: From Stone Age to Superpower</i>. 3rd ed. New York: Palgrave Macmillan. §REF§ <br>The institution of a standing army of professional warriors contributed to the rise of a class of militarized landed gentry in the provinces. This in turn laid the foundation for the rise of the shogunate, the military government which would dominate Japan until the 1800s, leaving the emperor as little more than a figurehead. §REF§ (Lorge 2011, 47) P. A. Lorge. 2008. <i>The Asian Military Revolution: From Gunpowder to the Bomb</i>. Cambridge: Cambridge University Press. §REF§ <br>The polity population ranged from roughly four million in 800 CE to five or six million by 1100 CE. §REF§ (Farris 2006, 9) William Wayne Farris. 2006. <i>Japan's Medieval Population: Famine, Fertility, and Warfare in a Transformative Age</i>. Honolulu: University of Hawaii Press. §REF§  §REF§ (McEvedy and Jones 1978, 181) Colin McEvedy and Richard Jones. 1978. <i>Atlas of World Population History</i>. London: Penguin Books. §REF§  Kyoto became the largest settlement, with an estimated population of 200,000 from 800 to 925 CE; 175,000 in the 11th century; and 150,000 by 1150 CE. §REF§ (Chandler 1987) Tertius Chandler. 1987. <i>Four Thousand Years of Urban Growth: An Historical Census</i>. Lewiston, NY: The Edwin Mellen Press. §REF§ ",
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            "polity": {
                "id": 130,
                "name": "IrSasn2",
                "start_year": 488,
                "end_year": 642,
                "long_name": "Sasanid Empire II",
                "new_name": "ir_sassanid_emp_2",
                "polity_tag": "LEGACY",
                "general_description": "In the final Sassanid period (488-642 CE), best known for the reign of Khusrau I, the Sassanid realm was managed through provincial governors called Shahr §REF§ (Daryaee 2009, 124-135) Touraj Daryaee. 2009. Sasanian Persia: The Rise and Fall of an Empire. I.B. Tauris. London. §REF§  and vassal kings appointed by the Sassanid King of Kings. Its population peaked at about 22 million at around 600 CE a time when the Empire was disintegrating.<br>The long reigns of Kavad I (499-531 CE) and Khusrau I (531-579 CE) saw many reforms, such as to the tax system and the military. Khusrau I is credited with wise leadership and is known as \"Plato's philosopher king.\" §REF§ (Daryaee 2009, 27-37) Touraj Daryaee. 2009. Sasanian Persia: The Rise and Fall of an Empire. I.B. Tauris. London. §REF§  Khusrau I (531-579 CE) promoted minor nobility to official positions and reduced the power of aristocrats, placing tax collection in the hands of officials directly under his own control. §REF§ (Chegini 1996, 47) N N Chegini. Political History, Economy and Society. in Litvinsky, B. A. ed. and Iskender-Mochiri, I. ed. 1996. History of Civilizations of Central Asia. Volume III. The crossroads of civilizations: A.D. 250 to 750. pp.40-58. unesdoc.unesco.org/images/0010/001046/104612e.pdf §REF§  Khusrau I also made some important structural reforms to the military which removed the Commander-in-Chief (Eran-Spahbad) and divided the empire into four regions, each under the control of a regional field marshal (Spahbads). §REF§ (Farrokh 2005, 3-27) Kevah Farrokh. 2005. Sassanian Elite Cavalry AD 224-642. Osprey Publishing. §REF§  This change enabled the Sassanids to more quickly respond to the external threats of invasion.<br>After the high point of Khusrau I internal instability became the norm and the ruling dynasty had almost wiped itself out by the time the Arabs conquered the last Sassanid stronghold at Persis in 650 CE. Hamizid IV (579-590 CE), who followed Khosrau I killed many of the nobility and was harsh to the priests. Hormizd IV was deposed 589-590 CE by his generals and the nobility who put on the throne his son, Khusrau II. §REF§ (Daryaee 2012, 199) Touraj Daryaee. The Sasanian Empire (224-651 CE). in Daryaee, Touraj. ed. 2012. The Oxford Handbook of Iranian History. Oxford University Press. Oxford. §REF§  Kushrau II was himself deposed by nobility and priests in 628 CE. §REF§ (Daryaee 2012, 200) Touraj Daryaee. The Sasanian Empire (224-651 CE). in Daryaee, Touraj. ed. 2012. The Oxford Handbook of Iranian History. Oxford University Press. Oxford. §REF§  Kavad II (628-630 CE) conducted a fratricide, killing all the male heirs in the Sasanid family, and was assassinated. §REF§ (Daryaee 2009, 31) Touraj Daryaee. 2009. Sasanian Persia: The Rise and Fall of an Empire. I.B. Tauris. London. §REF§ ",
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            "polity": {
                "id": 108,
                "name": "IrSeleu",
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                "long_name": "Seleucids",
                "new_name": "ir_seleucid_emp",
                "polity_tag": "LEGACY",
                "general_description": "The Seleucid Empire arose in the years following the death of Alexander the Great in 323 BCE and the subsequent division of his empire. Alexander’s generals each ruled part of the empire, including Seleucus I who became leader of the Babylonian territory in 319 BCE as a reward for having helped Alexander eliminate the regent Perdiccas  §REF§ (Sherwin-White and Kurht 1993, 10) S Sherwin-White. A Kurht. 1993. From Samarkhand to Sardis; A new approach to the Seleucid empire. London: Duckworth. §REF§ . This date does not however mark the start of the Seleucid Empire as Seleucus was ousted by the rival Antigonus in 315 BCE and did not return to power until 312 BCE, after which the Seleucid Empire truly began as Seleucus began to extent his domain to create an empire large enough to include territories in the Central Asian steppe to European Thrace  §REF§ (Kosmin 2013, 678) P J Kosmin. 2013. Alexander the Great and the Seleucids in Iran. In, Potts, D. T (ed.) The Oxford Handbook of Ancient Iran. Oxford: Oxford University Press, pp.671-689. §REF§ . Seleucus’ territorial achievements were matched by only one of his successors, Antiochus III, whose rule began 60 years later. The last rulers of the empire could not match the charisma and drive of these earlier rulers, especially in the face of growing powers to the west and east of the empire (Rome and Parthia respectively). The empire declined in size and influence until it was taken over by Rome in 63 BCE.<br>The Seleucid Empire continued to exert the Hellenistic influences of Alexander the Great’s empire, but like Alexander, the rulers of the Seleucid Empire generally allowed other religions and languages to continue and flourish (a notable exception being the persecution of the Jews by Antiochus IV)  §REF§ (Kosmin 2013, 684-685) P J Kosmin. 2013. Alexander the Great and the Seleucids in Iran. In, Potts, D. T (ed.) The Oxford Handbook of Ancient Iran. Oxford: Oxford University Press, pp.671-689. §REF§ . Most written documents are in Greek and contain valuable information about the empire, the battles fought and the kings who ruled. The documents are however far from complete and many aspects of the empire are either inferred from other sources or remain unknown. Overall it can be surmised that the Seleucid Empire was ruled by one king at a time who held central authority, but who exerted that authority through his commanders, or satraps, in the various territories of the empire  §REF§ (Kosmin 2013, 680) P J Kosmin. 2013. Alexander the Great and the Seleucids in Iran. In, Potts, D. T (ed.) The Oxford Handbook of Ancient Iran. Oxford: Oxford University Press, pp.671-689. §REF§ . This both gave the king a great amount of power but also made him vulnerable to the ambitions of his satraps, the most notable example being the betrayal of the general Achaios who in 220 BCE took the territories of Asia Minor for himself after conducting campaigns there on behalf of Antiochus III  §REF§ (Ager 2012, 421) S L Ager. 2012. The Alleged Rapprochement between Achaios and Attalos I in 220 BCE. Historia. 61 (4), pp. 421-429. §REF§ .",
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            "polity": {
                "id": 151,
                "name": "JpAzMom",
                "start_year": 1568,
                "end_year": 1603,
                "long_name": "Japan - Azuchi-Momoyama",
                "new_name": "jp_azuchi_momoyama",
                "polity_tag": "LEGACY",
                "general_description": "The Azuchi-Momoyama period (1568-1603 CE), also known as the Shokuho period, is named for the castles built by the warrior rulers Oda Nobunaga (Azuchi) and Toyotomi Hideyoshi (Momoyama). §REF§ (Deal 2005, 11) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  The Azuchi-Momoyama period marked the beginning of a process of national unification after the disorder of the Warring States period. §REF§ (Deal 2005, 12) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  The period starts with the rise to power of the military commander and regional lord Oda Nobunaga. With his defeat of the shogun Ashikaga Yoshiaki, he set about bringing the lesser <i>daimyō</i> (lords) under the control of a single military command. §REF§ (Hall 2008, 1) John Whitney Hall. 2008. 'Introduction', in <i>The Cambridge History of Japan, Vol. 4: Early Modern Japan</i>, edited by Kozo Yamamura, 1-39. Cambridge: Cambridge University Press. §REF§  §REF§ (Deal 2005, 11) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  In 1568 Nobunaga marched on, and occupied, the imperial capital of Kyoto, gaining effective control of the government. §REF§ (Deal 2005, 11) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§ <br>After the death of Nobunaga in 1582, his general Toyotomi Hideyoshi continued this process, gaining control of most of Japan by 1590 CE. In an attempt to expand Japan's territory overseas, Hideyoshi led two unsuccessful invasions of Korea in 1592 and 1597. §REF§ (Deal 2005, 11) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  Hideyoshi's death in 1598, leaving a council of lords in charge until his young son came of age, sparked off a succession struggle. The general Tokugawa Ieyasu, a former ally of Oda Nobunaga, emerged victorious from the Battle of Sekigahara in 1600, cementing his power. After his victory, he was appointed shogun in 1603, founding the Tokugawa Shogunate which would dominate Japan for the next 200 years. §REF§ (Deal 2005, 12, 17) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§ <br><i>Population and political organization</i><br>While the generals Oda Nobunaga, Toyotomi Hideyoshi and Tokugawa Ieyasu consolidated power into a military confederation, the emperor remained the nominal head of state throughout the period. §REF§ (Deal 2005, 3) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§  Although the older social order remained largely intact, with peasants subservient to feudal lords, Oda Nobunaga's policy of annexing lands and awarding them to his loyal retainers reshaped the power relations between lords and enabled the consolidation of his own power. §REF§ (Hall 2008, 1) John Whitney Hall. 2008. 'Introduction', in <i>The Cambridge History of Japan, Vol. 4: Early Modern Japan</i>, edited by Kozo Yamamura, 1-39. Cambridge: Cambridge University Press. §REF§  Toyotomi Hideyoshi was instrumental in creating a strict and finely graded social hierarchy of warriors, farmers, artisans, and merchants, a structure that would be institutionalized in the succeeding Tokugawa period. §REF§ (Deal 2005, 12) William E. Deal. 2005. <i>Handbook to Life in Medieval and Early Modern Japan</i>. Oxford: Oxford University Press. §REF§ <br>Population estimates for the area under Azuchi-Momoyama control range from roughly 17 million in 1500 CE to 22 million in 1600 CE. §REF§ (McEvedy and Jones 1978, 181) Colin McEvedy and Richard Jones. 1978. <i>Atlas of World Population History</i>. London: Penguin Books. §REF§  The imperial capital, Kyoto, remained the largest settlement with approximately 300,000 inhabitants. §REF§ (Chandler 1987) Tertius Chandler. 1987. <i>Four Thousand Years of Urban Growth: An Historical Census</i>. Lewiston, NY: The Edwin Mellen Press. §REF§",
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            "polity": {
                "id": 306,
                "name": "FrMervM",
                "start_year": 543,
                "end_year": 687,
                "long_name": "Middle Merovingian",
                "new_name": "fr_merovingian_emp_2",
                "polity_tag": "LEGACY",
                "general_description": "During our second Merovingian period (543-687 CE), the kingdom was still a 'quasi-polity', consisting of numerous Frankish kingdoms under the nominal leadership of a king who had his primary residence in Paris. §REF§ (Wood 1994, 41) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  Under the kings Chlothar II (r. 584-629 CE) and Dagobert I (r. 629-639 CE), the Merovingian kingdom reached the height of its power both internally and externally. §REF§ (Wood 1994, 140) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  §REF§ (Morby and Rozier 2014) Morby, John E., and Charlie Rozier. 2014. Dynasties of the World. 2nd ed., online edition. Oxford: Oxford University Press. DOI: 10.1093/acref/9780191780073.001.0001. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/seshat_databank/items/itemKey/3C5IVS6E\" rel=\"nofollow\">https://www.zotero.org/groups/seshat_databank/items/itemKey/3C5IVS6E</a>. §REF§ <br><i>Population and political organization</i><br>Merovingian France was a largely decentralized kingdom based on the pre-existing Roman administrative system, in which cities were the basic units. §REF§ (Loseby 1998, 245-49) Loseby, S. T. 1998. “Gregory’s Cities: Urban Functions in Sixth-Century Gaul.” In Franks and Alamanni in the Merovingian Period: An Ethnographic Perspective, edited by I. N. Wood, 239-69. Woodbridge: Boydell Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS</a>. §REF§  The city rulers, known as counts or <i>grafio</i>, who sent the king his tax revenue and carried out judicial and administrative functions, had access to both administrative officials and city archives (<i>gesta municipalia</i>). §REF§ (Wood 1994, 204) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  §REF§ (Loseby 1998, 245-49) Loseby, S. T. 1998. “Gregory’s Cities: Urban Functions in Sixth-Century Gaul.” In Franks and Alamanni in the Merovingian Period: An Ethnographic Perspective, edited by I. N. Wood, 239-69. Woodbridge: Boydell Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/DT5E5GNS</a>. §REF§  Groups of cities and counts could be placed under a duke for military and administrative purposes. §REF§ (Bachrach 1972, 67) Bachrach, Bernard S. 1972. Merovingian Military Organization 481-751. Minneapolis, MN: University of Minnesota Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/SG5XNFPG\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/SG5XNFPG</a>. §REF§ <br>In contrast, there was no elaborate central administration, the highest non-royal official being a figure known as the mayor of the palace. §REF§ (Halsall 2003, 28) Halsall, Guy. 2003. Warfare and Society in the Barbarian West, 450-900. London: Routledge. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/Z5EZBP2R\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/Z5EZBP2R</a>. §REF§  The king's capital and main residence was at Paris, where the population may have reached 30,000 by the 8th century CE, §REF§ (Clark and Henneman, Jr. 1995, 1316) Clark, William W., and John Bell Henneman, Jr. 1995. “Paris.” In Medieval France: An Encyclopedia, edited by William W. Kibler, Grover A. Zinn, Lawrence Earp, and John Bell Henneman, Jr., 1314-30. New York: Garland Publishing. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/HS8644XK\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/HS8644XK</a>. §REF§  although the court was always a peripatetic institution. §REF§ (Wood 1994, 150-53) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  The king consulted a group of magnates (<i>obtimates</i>) at an annual gathering around 1 March. Written references to royal edicts are known from 614 CE onwards, but earlier royal legislation has not survived. §REF§ (Fouracre 1998, 286-89) Fouracre, P. J. 1998. “The Nature of Frankish Political Institutions in the Seventh Century.” In Franks and Alamanni in the Merovingian Period: An Ethnographic Perspective, edited by Ian Wood, 285-316. Woodbridge: Boydell Press. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GT2AINW4\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GT2AINW4</a>. §REF§  Merovingian kings had the authority to appoint dukes and counts as well as bishops, who were often 'royal servants with no known connections with their sees'. §REF§ (Wood 1994, 78) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§ <br>From 622 CE onwards the basic territorial divisions of the Merovingian Kingdom were Neustria (centred on the Seine and Oise rivers and associated with the <i>Pactus Legis Salicae</i> law code), §REF§ (Wood 1994, 112-15) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  Burgundy (where the <i>Liber Constitutionum</i> was developed), and Austrasia (by the Rhine and Meuse, which came to possess its own mayor of the palace §REF§ (Fanning 1995, 157) Fanning, Steven. 1995. “Austrasia.” In Medieval France: An Encyclopedia, edited by William W. Kibler, Grover A. Zinn, Lawrence Earp, and John Bell Henneman, Jr., 156-57. New York: Garland Publishing. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR2MKFDX\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR2MKFDX</a>. §REF§  and followed the Lex Ribvaria). §REF§ (Wood 1994, 112-15) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§  A fourth area, Aquitaine, had a special status due to its distance from the royal centres and was under less direct Merovingian control. §REF§ (Wood 1994, 100, 146) Wood, Ian. 1994. The Merovingian Kingdoms 450-751. London: Longman. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/ARUIRN35</a>. §REF§ ",
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                "general_description": "China was reunified after the Northern and Southern dynasties period by the short-lived Sui dynasty (581-618 CE). The first Sui emperor Yang Jian dethroned the Northern Zhou emperor and conquered the southern Chen dynasty.§REF§ (Theobald 2000) Theobald, U. 2000. Sui Dynasty (581-618). Chinaknowledge.de. <a href=\"http://www.chinaknowledge.de/History/Tang/sui.html\">http://www.chinaknowledge.de/History/Tang/sui.html</a>  Accessed June 15, 2017. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9</a>  §REF§ The Sui were able to unify China but did not create a stable, lasting imperial house.§REF§ (Theobald 2000) Theobald, U. 2000. Sui Dynasty (581-618). Chinaknowledge.de.<a href=\"http://www.chinaknowledge.de/History/Tang/sui.html\">http://www.chinaknowledge.de/History/Tang/sui.html</a>  Accessed June 15, 2017. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9</a>  §REF§ The second Sui emperor Yangdi is villainized for his extravagant spending and endless military campaigns. Yangdi  undertook massive infrastructure projects including the fortification of the Great Wall, and the construction of a third capital at Jiangdu, and the Grand Canal. He also conducted many military campaigns including multiple attempts to conquer the Korean Peninsula. §REF§ (Theobald 2000) Theobald, U. 2000. Sui Dynasty (581-618). Chinaknowledge.de. <a href=\"http://www.chinaknowledge.de/History/Tang/sui.html\">http://www.chinaknowledge.de/History/Tang/sui.html</a>  Accessed June 15, 2017. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9</a>  §REF§ His overuse of conscripted corvee labor coupled with natural disasters led to famine, and the dynasty was overthrown by massive peasant rebellions and revolts by nobles after only 37 years of rule.§REF§ (Editorial Committee of Chinese Civilization 2007, 62) Editorial Committee of Chinese Civilization (eds.) 2007. China: Five Thousand Years of History and Civilization. Hong Kong: City University of Hong Kong Press. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/V6V8BAE4\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/V6V8BAE4</a>  §REF§ Sui construction of infrastructure and government reforms paved the way for the lasting rule of the Tang.§REF§ (Theobald 2000) Theobald, U. 2000. Sui Dynasty (581-618). Chinaknowledge.de.<a href=\"http://www.chinaknowledge.de/History/Tang/sui.html\">http://www.chinaknowledge.de/History/Tang/sui.html</a>  Accessed June 15, 2017. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9</a>  §REF§<br>The Sui territory encompassed 3 million square kilometers in 581.§REF§ (Chase-Dunn spreadsheet) §REF§ The 2,500 km (5,000 li) Grand Canal supplied the Sui capitals of Luoyang, Chang’an and Jiangdu with grain from the lower Yangtze area, running from the eastern capital of Luoyang to present-day Beijing and Hangzhou.§REF§ (Editorial Committee of Chinese Civilization 2007, 62) Editorial Committee of Chinese Civilization (eds.) 2007. China: Five Thousand Years of History and Civilization. Hong Kong: City University of Hong Kong Press. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/V6V8BAE4\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/V6V8BAE4</a>  §REF§ The Sui sphere of influence reached Chinese Turkestan, Champa, and Formosa.§REF§ (Tuan 2008, 94) Tuan, Yi-Fu. 2008. A Historical Geography of China. London: Aldine Transactions. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GTTWMMF5\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GTTWMMF5</a>  §REF§<br><i>Population and political organization</i><br>The Sui’s administrative reforms abolished all fiefdoms and set up a prefecture system. The examination and military system were reformed. §REF§ (Theobald 2000) Theobald, U. 2000. Sui Dynasty (581-618). Chinaknowledge.de. <a href=\"http://www.chinaknowledge.de/History/Tang/sui.html\">http://www.chinaknowledge.de/History/Tang/sui.html</a>  Accessed June 15, 2017. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GR73VWI9</a>  §REF§ Yang Jian reestablished Han Confucian government rituals, and reformed Chinas’ penal code and administrative laws.§REF§ “Sui dynasty.” Encyclopedia Britannica. <a href=\"https://www.britannica.com/topic/Sui-dynasty\">https://www.britannica.com/topic/Sui-dynasty</a>  Accessed June 16, 2017. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/RPPSPKUR\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/RPPSPKUR</a>  §REF§<br>The Sui population was recorded as 46 million in a 609 CE census. However, some modern scholars believe that this number is too low.§REF§ (Tuan 2008, 94) Tuan, Yi-Fu. 2008. A Historical Geography of China. London: Aldine Transactions. Seshat URL: <a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GTTWMMF5\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/GTTWMMF5</a>  §REF§",
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