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Battles, incidents, and historical events related to Japanese swords
296 events
1208 (Jōgen 2)
In 1208 (Jōgen 2), Retired Emperor Gotoba summoned outstanding swordsmiths from across Japan to his detached palace at Minase and established the Gobankaji system, under which they took turns forging blades on a monthly rotation. Twelve master smiths from Bizen, Bitchū, and Yamashiro were chosen, and the Retired Emperor himself also hardened the edges of blades (the Kiku Gosaku). The system raised the Japanese sword beyond a weapon into a work of art and gave rise to the golden age of swords in the mid-Kamakura period. As a court-led policy to promote sword culture that set the precedent for later rulers' patronage of swordsmiths, it is counted among the most important cultural policies in the history of the Japanese sword.
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c. 1596 (Keichō 1)
Around Keichō 1 (1596), Toyotomi Hideyoshi appointed Honami Kōtoku as “touken kiwamedokoro” (sword authentication office) and officially sanctioned a system of sword appraisal and valuation by origami (folded appraisal certificates). Origami issued by the Honami family served as official appraisal documents recording the smith’s inscription, dimensions and appraised value (daitsuke). They laid the foundation for the later compilation of the Kyōhō Meibutsu Chō and for modern sword authentication systems.
c. 1604 (Keichō 9), per tradition (based on the "Kokura Hibun," "Niten-ki," and other sources compiled after Musashi's death)
A legend holding that in 1604, Miyamoto Musashi fought a duel against the prestigious Yoshioka school of swordsmanship at Ichijōji Sagarimatsu in Kyoto. Tradition holds that Musashi single-handedly prevailed against several hundred disciples, but the account rests on commemorative sources compiled after Musashi's death, and its historicity is subject to scholarly doubt.
12th day of the 2nd month, Keichō 8 (1603)
On the 12th day of the 2nd month of Keichō 8 (March 24, 1603), Tokugawa Ieyasu was appointed Sei-i Taishōgun and established the shogunate in Edo. The consolidation of power, achieved about two years after the Battle of Sekigahara, laid the foundation for the Edo period, which lasted more than 260 years. Through the organization of the bakuhan system, the enactment of the Buke Shohatto, and the legalization of the sankin-kōtai system, the warrior status and sword-fitting culture became highly institutionalized, and the Japanese sword evolved from a weapon into a symbol of samurai authority and beauty.
October 13–21, 1600 (Keichō 5, 9th month, 7th–15th day)
From the 7th to the 15th day of the 9th month of Keichō 5 (October 13–21, 1600), Kyōgoku Takatsugu held Ōtsu Castle in Ōmi Province against a Western Army force led by Tachibana Muneshige for nine days. His determined resistance pinned down fifteen thousand Western troops — including the formidable Tachibana forces — until the day Sekigahara was decided, thereby making a significant indirect contribution to the Eastern Army's victory. The siege transformed the man derided as a 'firefly lord' into an unlikely hero.
17th–18th day of the 9th month, Keichō 5 (1600)
On the 17th and 18th days of the 9th month of Keichō 5 (1600), just two days after the main battle of Sekigahara, Sawayama Castle in Ōmi Province (present-day Hikone, Shiga Prefecture) was besieged. Ishida Mitsunari's father, Ishida Masatsugu, and his elder brother, Ishida Masazumi, held the castle against an Eastern Army of 15,000. The garrison numbered only 2,800 and the castle fell, and many members of the Ishida clan, including Masatsugu and Masazumi, took their own lives. The castle that had symbolized Mitsunari's power was destroyed. It is an emblematic episode of the mop-up operations following Sekigahara.
13th–14th day of the 9th month, Keichō 5 (1600)
On the 13th to 14th day of the 9th month of Keichō 5 (1600), at Ishigakibaru in Hayami District, Bungo Province (present-day Beppu City, Ōita Prefecture), the forces of Kuroda Josui (Yoshitaka, Kuroda Kanbei), who sided with the Eastern Army (Tokugawa side), clashed with those of Ōtomo Yoshimune (Yoshitō), who sought to recover his former domain in concert with the Western Army. Because it was fought at about the same time as the main battle of Sekigahara, it is also called 'Kyūshū's Sekigahara.' The Kuroda side won, and Ōtomo Yoshimune surrendered, ending any hope of the Ōtomo clan's revival as a daimyo house.
9th–10th months of Keichō 5 (1600)
In the 9th month of Keichō 5 (1600), at the same time as the Battle of Sekigahara, a battle broke out in the Ōu region between the forces of Uesugi Kagekatsu and the combined army of Mogami Yoshiaki and Date Masamune. The Uesugi army under Naoe Kanetsugu attacked Hasedo Castle, but withdrew in the face of the stubborn resistance of the Mogami side and the news of the defeat at Sekigahara.
September 29–30, 1600 (Keichō 5/8/22–23)
From the 22nd to the 23rd days of the 8th month of Keichō 5 (1600), the Battle of Gifu Castle took place at Gifu Castle in Mino Province (present-day Gifu City, Gifu Prefecture). In this battle, the Eastern Army, led by Fukushima Masanori, Ikeda Terumasa and others, captured Gifu Castle, which was held by Oda Hidenobu (Sanbōshi) of the Western Army, in two days. It held an important position as a prelude to the Battle of Sekigahara, and the Eastern Army's decisive victory, which came before the battle that would decide the realm, greatly disrupted the Western Army's strategic deployment.
24th–25th day of the 7th month, Keichō 5 (1600)
On the 24th–25th day of the 7th month of Keichō 5 (1600), Date Masamune, acting in support of Tokugawa Ieyasu's campaign against Uesugi Kagekatsu, attacked Shiroishi Castle in Mutsu Province, then held by the Uesugi. The titular castellan, Amakasu Kagetsugu, was absent on duty at Aizu; the actual defense fell to his nephew Tosaka Katsuno, who surrendered within roughly a day. The battle served as the opening engagement of the Keichō Dewa Campaign.
August 27 – October 19, 1600 (Keichō 5/7/19 – 9/13)
A siege fought from the 7th to the 9th month of Keichō 5 (1600) at Tanabe Castle in Tango Province (present-day Maizuru, Kyoto Prefecture), in which Hosokawa Yūsai (Fujitaka), renowned both as a man of culture and as a warrior, held out for about two months against a large Western Army force. Peace was concluded by imperial command of Emperor Go-Yōzei, and Yūsai's life was specially spared as the sole heir of the Kokin Denju. It is famous as the last siege of a commander accomplished in both letters and arms, who loved waka poetry and swords.
August 27 – September 8, 1600 (Keichō 5, 7th month, 19th day – 8th month, 1st day)
The Battle of Fushimi Castle (1600) was the opening engagement of the Sekigahara campaign. Torii Mototada, Tokugawa Ieyasu's veteran retainer, held the castle with roughly 1,800 men against a Western Army of some 40,000 for more than ten days before the castle fell. Mototada's death and the blood-stained floorboards — preserved in temples as 'blood ceilings' — became powerful symbols of samurai loyalty on the eve of the battle that unified Japan.
24th day of the 8th month, Keicho 5 (old calendar; 1 October 1600; skirmishing from the 23rd)
A battle on the 24th day of the 8th month of Keicho 5 (old calendar; 1 October 1600), when Tomita Nobutaka and Wakebe Mitsuyoshi, in Anotsu Castle in Ise, were attacked by some 30,000 Western Army troops under Mori Hidemoto, Natsuka Masaie, Ankokuji Ekei and others. The article follows the fighting, the surrender mediated by Mokujiki Oyo, the later fortunes of the Tomita, and the castle site.
25th day of the 7th month, Keichō 5 (1600)
In the 7th month of 1600, on the eve of Sekigahara, Tokugawa Ieyasu convened a war council at Oyama in Shimotsuke Province. Securing the loyalty of eastern lords including Fukushima Masanori, he pivoted from the Aizu campaign to confronting the Western Army — a turning point that determined the fate of Japan.
22nd day of the 12th month, Keicho 2 to 4th day of the 1st month, Keicho 3 (old calendar; 29 January to 9 February 1598 in the Gregorian calendar)
A battle at Ulsan in Korea from the 22nd day of the 12th month of Keicho 2 to the 4th day of the 1st month of Keicho 3 (29 January to 9 February 1598), in which Kato Kiyomasa and others in an unfinished castle withstood a Ming and Korean siege. The article follows the surprise attack, the fall of the outer works, the shortage of food and water, the gathering of relief forces, the failure of the final assault and the retreat.
Keichō 2 (1597) – Keichō 3 (1598)
In Keichō 2 (1597), after a four-year truce that followed the Bunroku Campaign, Toyotomi Hideyoshi again sent a large army to Korea. The war records the realities of early modern warfare, in which Japanese swords and matchlocks were used together. It includes the siege of Ulsan Castle led by Katō Kiyomasa and the Battle of Noryang Strait, where Shimazu Yoshihiro and others struggled. With Hideyoshi's death, the war lost its purpose and all Japanese forces withdrew. It inflicted immense human and cultural losses on the Korean Peninsula.
13th day of the intercalary 6th month, Keicho 20 (7 August 1615)
Issued by the Edo shogunate in the intercalary sixth month of 1615, just after the Summer Siege of Osaka, it ordered daimyo to dismantle all castles but their seat. Some 400 castles are said to have been razed, sharply reducing the number of castles.
Keicho 20 / Genna 1 (1615)
In 1615 the Toyotomi fell in the Summer Siege of Osaka, and the era name was changed from Keicho to Genna the same year. Called Genna Engu, 'the laying down of arms', it is regarded as the starting point of some 250 years of peace.
6th day of the 5th month, Keichō 20 (1615)
A battle on the 6th day of the 5th month of Keichō 20 (1615) in the Summer Campaign of Ōsaka, fought near Dōmyōji and Konda in Kawachi Province between the Toyotomi army and the Tokugawa Yamato column. Gotō Mototsugu and Susukida Kanesuke, who had gone ahead, were killed, and Sanada Nobushige covered the retreat.
4th–5th month of Keichō 20 (1615)
In the 5th month of Keichō 20 (1615), Tokugawa Ieyasu destroyed the Toyotomi house in the final battle. Sanada Yukimura charged in a desperate assault toward Ieyasu's main encampment, and his fierce last stand was praised as "the finest warrior in Japan."
January 3, 1615 (Keichō 19, 12th month, 4th day)
A battle fought around Sanada-maru, the outwork Sanada Nobushige (Yukimura) built south of Osaka Castle during the Winter Siege of 1614. Toyotomi defenders repelled the Tokugawa vanguard under Maeda Toshitsune, Ii Naotaka and Matsudaira Tadanao, and the campaign then moved toward a peace settlement and the filling of the moats.
10th–12th month of Keichō 19 (1614)
From the 10th to the 12th month of Keichō 19 (1614), Tokugawa Ieyasu laid siege to Toyotomi Hideyori's castle, Osaka Castle. Sanada Yukimura built the Sanada-maru and repelled the Tokugawa forces. The battle became a complex siege in which cannon bombardment and peace negotiations were intertwined. It was the direct prelude to the following year's Summer Campaign.
13th day of the 4th month, Keichō 17 (1612), according to the Niten Ki (disputed)
On the 13th day of the 4th month of Keichō 17 (May 13, 1612), Miyamoto Musashi and Sasaki Kojirō fought a one-on-one duel on Ganryūjima Island in Buzen Province. Musashi emerged victorious in the most celebrated single combat in Japanese history.
4th day of the 3rd month – 4th day of the 4th month, Keichō 14 (1609) — from the fleet's departure at Yamakawa to the surrender of Shuri Castle
In 1609, a force of roughly 3,000 troops led by Kabayama Hisataka, acting on the orders of Satsuma domain lord Shimazu Iehisa, invaded the Ryukyu Kingdom. Departing from Yamakawa Harbor, they sailed via Amami Ōshima, Tokunoshima, and Okinoerabujima to land at Unten Harbor, forcing the surrender of Shuri Castle and King Shō Nei. Ryukyu subsequently entered a dual subordination to both Japan and China that lasted until the end of the shogunate.