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Battles, incidents, and historical events related to Japanese swords
169 events
January 1392 (Meitoku 2, 12th month)
In Meitoku 2 (1391), members of the Yamana clan, including Yamana Ujikiyo and Mitsuyuki, who had grown powerful enough to threaten the Ashikaga shogunate, raised a rebellion against the third-generation Shogun Ashikaga Yoshimitsu. Yoshimitsu defeated the Yamana army in a single day at Uchino in Kyoto and thoroughly reduced the power of the Yamana clan. This victory decisively established Yoshimitsu's supreme authority over the Muromachi shogunate and marked the peak of his patronage of sword culture.
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May 1592 – June 1593 (4th month, Bunroku 1 – 5th month, Bunroku 2)
In 1592, Toyotomi Hideyoshi sent 150,000 troops to Korea in his bid for continental conquest. Katō Kiyomasa and Konishi Yukinaga rapidly captured Seoul and Pyongyang, but Admiral Yi Sun-sin's navy and Ming reinforcements forced a reversal, leading to a ceasefire in 1593. It was a large-scale clash between Japanese swords and Korean and Chinese arms.
7th–9th months of Bunji 5 (1189)
In 1189, Minamoto no Yoritomo launched a military campaign against Fujiwara no Yasuhira, the lord of Ōshū (Mutsu and Dewa provinces), crushing the last major independent power in Japan. The campaign ended the brilliant Hiraizumi culture of the Fujiwara northern lords and was nominally triggered by Yasuhira's killing of the fugitive Minamoto no Yoshitsune.
10th month, Bun'ei 11 (1274)
In the 10th month of Bun'ei 11 (1274), the first Mongol invasion took place: a Yuan–Goryeo allied army of about 30,000 men, dispatched by Kublai Khan, landed in Hakata Bay. Although bewildered by unfamiliar tactics such as massed formations and gunpowder weapons, the Japanese warriors fought back with bows, arrows, and tachi. Some view the experience of this battle as having spurred later changes in swords of the late Kamakura period.
1274 (Bun'ei Invasion) and 1281 (Kōan Invasion)
The Mongol Empire, allied with Goryeo Korea, twice invaded northern Kyushu — in 1274 (Bun'ei Invasion) and 1281 (Kōan Invasion). Both invasions were repelled, the second by a devastating typhoon the Japanese called kamikaze (divine wind). The wars forced a rapid evolution in Japanese swordsmanship and blade design.
1474 (Bunmei 6) – 1580 (Tenshō 8)
The Ikko Uprising that erupted in Kaga Province (present-day Ishikawa) in 1474 (Bunmei 6) continued for approximately 100 years until it was suppressed by Oda Nobunaga in 1580 (Tenshō 8), establishing a unique autonomous self-governance known as 'a nation held by commoners.' This uprising, in which armed Ikko adherents overthrew provincial governors and their deputies, is deeply inscribed in sword history as an emblematic event symbolizing the practical aspects of Japanese swords and the intersection of religion and peasantry.
August 15–16, 1863 (Bunkyū 3, 7th month, 2nd–3rd day)
A war fought between the Satsuma domain and the British fleet in Kinko Bay on August 15–16, 1863 (Bunkyū 3/7/2–3). In response to seven British warships that arrived demanding reparations for the Namamugi Incident, the Satsuma artillery batteries opened fire. The British vessels burned Satsuma's steamships and bombarded the city, but Satsuma fiercely resisted and severely damaged the British warships. Through this conflict, Satsuma came to understand the futility of the expel-the-barbarians movement, improved relations with Britain, and shifted toward overthrowing the shogunate and pursuing modernization.
935–941 CE (Jōhei 5 – Tengyō 4)
Two simultaneous uprisings between 935 and 941 — Taira no Masakado's revolt in the Kantō and Fujiwara no Sumitomo's maritime rebellion in the Seto Inland Sea — marking the collapse of the ritsuryō state and the rise of the warrior class.
935–940 (Jōhei 5 – Tengyō 3)
An armed rebellion in the Kantō region during the Jōhei and Tengyō eras (935–940). Taira no Masakado seized the eight provinces of Bandō, proclaimed himself "New Emperor" (Shinnō) and defied the imperial court. The allied forces of Fujiwara no Hidesato and Taira no Sadamori killed Masakado and suppressed the rebellion, but the uprising became a historic turning point heralding the dawn of the age of the warriors.
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.
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.
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.
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.