统一日本，为何仍不足以维持统治？

Nabeshima Hōkōkai / Chōkokan, “Letter Jointly Signed by the Five Toyotomi Commissioners to Nabeshima Naoshige,” in the Agency for Cultural Affairs' Cultural Heritage Online. The catalog explains the assurance about Hideyoshi's recovery and the concealment of his death during withdrawal preparations. Its regnal date and explanatory paragraph give Keichō 3, eighth month, twenty-fifth day, corresponding to 1598; a separate Western-year field incorrectly prints 1597. The essay follows the regnal date and explanation, and does not convert the date silently into Gregorian August. https://online.bunka.go.jp/heritages/detail/285126

Kenneth M. Swope, “Ming Grand Strategy during the Great East Asian War, 1592–1598,” in East Asia in the World (2020), pp. 108–128, publicly accessible chapter summary; and Morgan Pitelka's chapter summary listed in note ur16 for the domestic unification sequence. Used to locate Hideyoshi's invasions within a war involving Korean resistance and Ming intervention, not as evidence that those opponents were passive recipients of Japanese decisions. The full Swope chapter was not consulted. https://www.cambridge.org/core/books/abs/east-asia-in-the-world/ming-grand-strategy-during-the-great-east-asian-war-15921598/AB038744ED15D6ADB4940F932E762743

National Archives of Japan, “The Battle of Sekigahara,” Tokugawa Ieyasu: His Life through the Shogunal Library. Hideyori's minority, the conventional Five Elders and Five Commissioners, and the subsequent contest. These groupings are not treated as a modern cabinet governed by a fully settled constitutional division of responsibilities. https://www.archives.go.jp/exhibition/digital/ieyasu/contents3_01/

National Museum of Japanese History, khirin database, Survey Register for Imazaike Village, Gamō District, Ōmi Province, dated Tenshō 12 (1584), eleventh month. The recorded closing entry includes Ishida Sakichi, identified as Mitsunari. The database description, rather than a new transcription of every entry, supplies the identification used here. https://khirin.rekihaku.ac.jp/pid/nmjh_rekimin_h/12548255.html

Minzhao Wang, Austin Michael Mitchell, and Weiwen Yin, “Foreign Faith and Rising State: An Examination of State-Building Dynamics in Late 16th-Century Japan,” Political Science Research and Methods, published online July 2, 2025, DOI 10.1017/psrm.2025.10023. Sections 2 and 4.2.1 and footnote 2 support the survey process, uneven implementation, self-reported figures, and the distinction between recorded assessments and actual output. The essay does not adopt the article's stronger generalizations about a completed caste system or use its statistical findings to claim that religious threats explain all surveying. https://www.cambridge.org/core/journals/political-science-research-and-methods/article/foreign-faith-and-rising-state-an-examination-of-statebuilding-dynamics-in-late-16thcentury-japan/566C0575FE9C7FAE53079ED1BB302C17

John Whitney Hall, “The Bakuhan System,” in Warrior Rule in Japan (1995), pp. 147–201, publicly accessible chapter summary. The early origins of institutions under Nobunaga and Hideyoshi, their subsequent development under the Tokugawa, and the distinction between shogunal and domain government. The full chapter was not consulted. https://www.cambridge.org/core/books/abs/warrior-rule-in-japan/the-bakuhan-system/F3BA2D329F0C7C734F7573B071DB21BF

Toyotomi Hideyoshi, “Collection of Swords, 1588,” translated in David J. Lu, Japan: A Documentary History, pp. 191–192, excerpted by Columbia University, Asia for Educators. The essay paraphrases the edict itself rather than treating the accompanying commentary or modern introduction as proof of universal enforcement. https://afe.easia.columbia.edu/main_pop/ps/ps_japan-tokugawa-edicts-swords.htm

Hiroshima Castle, “The Successive Lords of Hiroshima Castle,” sections on Fukushima Masanori and Asano Nagaakira. Fukushima's service under Hideyoshi, his alignment at Sekigahara, the continuing overlap in affiliations before 1615, and the Asano continuation of fiscal and local arrangements. https://hiroshimacastle.jp/history/lord-of-castle

Hiroshima Castle, “The Fukushima Arrival and Confiscation / Asano Rule.” The post-Sekigahara territorial grant, the 1601 survey, the flood and unauthorized repairs, the unsuccessful conditional settlement, and the handover in 1619. The episode is not reduced to punishment for one repaired stone or presented as politically neutral enforcement. https://hiroshimacastle.jp/history/history02

National Archives of Japan, “Senhime's Marriage,” in its Ieyasu exhibition. The 1603 marriage, Ieyasu's shogunal appointment, and Hidetada's succession in 1605. Ages in the source follow traditional counting and are not repeated as modern exact ages. https://www.archives.go.jp/exhibition/digital/ieyasu/contents5_01/

National Archives of Japan, “Ieyasu's Death,” in the same exhibition. The founder's death in 1616, after the transfer of office and the Osaka campaigns. https://www.archives.go.jp/exhibition/digital/ieyasu/contents6_03/

National Archives of Japan, “The Laws for the Military Houses,” within “Ieyasu's Domestic and Foreign Policies.” The 1615 promulgation in Hidetada's name at Fushimi, Ishin Sūden's drafting, and the thirteen-article text. The exhibited compilation is a later record, not claimed here to be the original promulgation manuscript. https://www.archives.go.jp/exhibition/digital/ieyasu/contents3_02/03/

National Archives of Japan, “The Meeting at Nijō Castle.” The 1611 encounter between Hideyori and Ieyasu. The essay uses the occurrence and setting of the meeting without adopting later anecdotes as direct access to either man's private intentions. https://www.archives.go.jp/exhibition/digital/ieyasu/contents5_02/

National Archives of Japan, “The Winter and Summer Campaigns at Osaka.” The campaigns of 1614–15 and the end of the Toyotomi house as an independent political power. https://www.archives.go.jp/exhibition/digital/ieyasu/contents5_04/

Laws of Military Households (Buke Shohatto), 1615, translated in David J. Lu, Japan: A Documentary History, pp. 206–208, excerpted by Columbia University, Asia for Educators. Articles on military and literary cultivation, castles, and marriage are paraphrased. Both pages of the source PDF were checked. The provisions indicate official demands; the essay does not assume identical enforcement in every case. https://afe.easia.columbia.edu/ps/japan/tokugawa_edicts_military.pdf

Morgan Pitelka, “The End of Civil War and the Formation of the Early Modern State in Japan,” The New Cambridge History of Japan, vol. 2 (2024), publicly accessible chapter summary. The incremental consolidation across Ieyasu, Hidetada, and Iemitsu and the continuing role of coercion. The full chapter was not consulted. The essay's comparison of resources, rewards, succession, and administrative continuity is its own synthesis of the documented cases, not a purported quotation of Pitelka's complete argument. https://www.cambridge.org/core/books/abs/new-cambridge-history-of-japan/end-of-civil-war-and-the-formation-of-the-early-modern-state-in-japan/F418B98E1B9585977F6C960A4E07E2FF