Tanegashima Teppō (Introduction of Matchlocks to Japan)

Timeline

1. c. 1420–1490Eurasian continent · Southeast AsiaBy the mid-15th century, European matchlock arquebus technology was maturing, and the Ottoman Empire, Persia, and India successively copied and improved it. Between 1451 and 1460, Ottoman forces made extensive use of firearms (including matchlocks) to capture Constantinople and expand their territory, marking the entry of matchlock technology into a mature phase of dissemination, spreading via Portuguese eastward expansion to the Indian Ocean and Southeast Asia.
2. 1543Tanegashima · KyushuIn 1543, Portuguese merchants including Francisco Zeimoto, drifting to Tanegashima aboard a Chinese smuggling vessel, carried two matchlocks, which island lord Tanegashima Tokitaka purchased at a high price and ordered swordsmith Yasaka Kinbei to copy. The following year, Tachibana Yūzaburō traveled to Sakai, bringing teppō technology to Honshu and inaugurating localized teppō production in Japan.
3. c. 1545–1600Honshu, Japan · JapanAfter teppō arrived, swordsmiths in Sakai and elsewhere quickly mastered copying techniques, and competing Sengoku daimyō rushed to purchase them and organize teppō ashigaru units. At the Battle of Nagashino in 1575, Oda Nobunaga used about 3,000 teppō in a rotating three-rank firing formation to rout the Takeda cavalry, making teppō the decisive weapon shaping battle outcomes and fundamentally transforming the arms structure and tactical system of Japanese warfare.