Tenbun

 ( Japanese Eras ) 

天文, also known as Tenmon, was a "year name" after Kyoroku and before Kōji. This period spanned from July 1532 through October 1555.Nussbaum, Louis-Frédéric. (2005). " Tembun" in Japan encyclopedia, p. 956; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File . The reigning emperor was 後奈良天皇.Titsingh, Isaac. (1834). Annales des empereurs du japon, pp. 372–382.

• 1532 天文元年: At the request of Ashikaga Yoshiharu, the 12th shōgun of the Muromachi Bakufu, the era name was changed because of various battles. The previous era ended and a new one commenced in Kyōroku 5, on the 29th day of the 7th month.

• 23 September 1532 ( Tenbun 1, 24th day of the 8th month): Yamashina Mido set on fire. Hokke-ikki in Kyoto.
• 29 March 1535 ( Tenbun 4, 26th day of the 2nd month): Emperor Go-Nara is formally installed as emperor.Titsingh, p. 374.
• 7 July 1541 ( Tenbun 10, 14th day of the 6th month): Takeda Harunobu (later Takeda Shingen) banishes his father, Takeda Nobutora.
• 4 September 1542 ( Tenbun 11, 25th day of the 8th month): Imagawa Yoshimoto, who was daimyō of Suruga Province, conquered Tōtōmi Province; and from there, he entered Mikawa Province where he battled the daimyō of Owari Province, Oda Nobuhide. The Imagawa forces were defeated by the Oda army.Titsingh, p. 376.
• 24 September 1543 ( Tenbun 12, 25th day of the 8th month): Portugal ship drifts ashore at Tanegashima, and the gun is first introduced into Japan.
• July/August 1544 ( Tenbun 13, 7th month): Flooding in Heian-kyō and nearby areas.Titsingh, p. 377.
• 11 January 1546 ( Tenbun 15, 20th day of the 12th month): Ashikaga YoshifushiTitsingh, p. 381; n.b., Ashikaga Yoshifushi changed his name to Yoshiteru in 1554 ( Tenbun 23, 2nd month).] becomes 13th Shōgun of the Ashikaga shogunate.Titsingh, p. 378.
• 1547 ( Tenbun 16): Joseon-Japanese "Treaty of Tenbun", trading limited to Joseon port of Pusan and Sō clan commerce limited to 20 ships annually.Hall, John Whitney. (1997). The Cambridge History of Japan: Early Modern Japan, p. 249.
• 28 January 1548 ( Tenbun 17, 30th day of the 12th month): Nagao Kagetora (later Uesugi Kenshin) replaces his older brother Nagao Harukage as heir to Echigo Province, with triumphant entry in Kasugayama Castle.
• 23 March 1549 ( Tenbun 18, 24th day of the 2nd month): Nōhime, daughter of Saitō Dōsan, daimyō of Mino Province, marries Oda Nobunaga.
• 27 July 1549 ( Tenbun 18, 3rd day of the 7th month): Jesuit Catholic Church priest Francis Xavier arrives in Japan at Kagoshima
• 15 December 1549 ( Tenbun 18, 27th day of the 11th month): Matsudaira clan of Mikawa Province fall under Imagawa Yoshimoto's rule. Matsudaira Takechiyo (later Tokugawa Ieyasu) departs for Imagawa as a hostage.
• September 1551 ( Tenbun 20, 8th month): Tainei-ji incident - Sue Takafusa (later Sue Harukata) leads a coup d'etat within the Ōuchi clan, forcing the head of the clan, Ōuchi Yoshitaka, to commit suicide at Tainei-ji temple. Ōuchi vassal Mōri Motonari would soon defeat Takafusa at the Battle of Miyajima in 1555.
• March/April 1554 ( Tenbun 23, 2nd month): Shogun Yoshifushi changes his name to Yoshiteru.

• Hall, John Whitney. (1997). The Cambridge History of Japan: Early Modern Japan. Cambridge: Cambridge University Press. ;
• Nussbaum, Louis Frédéric and Käthe Roth. (2005). Japan Encyclopedia. Cambridge: Harvard University Press. ; OCLC 48943301
• Isaac Titsingh. (1834). Nihon Ōdai Ichiran; ou, Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691

• National Diet Library, "The Japanese Calendar" – historical overview plus illustrative images from library's collection