Origins The area of modern Toyokawa was settled in prehistoric times. During the
Nara period, the
kokubunji of
Mikawa Province was established in 741.
Feudal period Muromachi period The temple of
Toyokawa Inari, a popular pilgrimage destination, dates from 1441.
Sengoku period A number of
daimyō clans under the
Tokugawa shogunate originate in what are now parts of Toyokawa, most notably the
Makino clan.
Early modern period Edo period The area prospered during the
Edo period with two
post towns along the
Tōkaidō,
Goyu-shuku and
Akasaka.
Late modern period Meiji period After the
Meiji Restoration, on October 1, 1889, several villages were organized with the establishment of the modern municipalities system within
Hoi District,
Aichi Prefecture, including Toyokawa Village. On March 13, 1893, Toyokawa was promoted to town status.
Showa period Toyokawa City was founded on June 1, 1943, by the merger of Toyokawa town with neighboring Ushikubo Town and Yawata Village, all from Hoi District. In 1939 the massive
Toyokawa Naval Arsenal was established, one of the largest producers of machine guns, aviation ordnance and ammunition in the
Empire of Japan. It also had sections that produced
military-issue katana,
bayonets, and glass lenses for use in cameras, binoculars, and similar equipment. During
World War II, many thousands of civilians were conscripted or volunteered to work at the Arsenal, and towards the end of the war, this workforce included hundreds of middle school students and high school girls. On August 7, 1945, the Toyokawa Naval Arsenal was targeted by a flight of B-29 bombers. About 2,500 people were killed during the
Toyokawa Air Raid. Toyokawa was one of the last places to be targeted using conventional explosive and incendiary bombs in the closing days of World War II, occurring the day after
Hiroshima was destroyed by an atomic bomb.
Contemporary history After WWII After the war, on April 12, 1955, Toyokawa annexed Mikami village from
Yana District. This was followed by the neighboring town of Goyu from Hoi District on April 1, 1959. Toyokawa further expanded on February 1, 2006, by annexing
Ichinomiya, On January 15, 2008, the towns of
Otowa and
Mito became part of Toyokawa, and finally on February 1, 2010, the town of
Kozakai likewise was merged into Toyokawa City. File:Toga Shrine (main hall 2).jpg|
Toga Shrine File:Toyokawa Inari (Hatsumoude).jpg|
Toyokawa Inari File:Ruins of the Ina Castle 1.jpg|Ina Castle File:GoyuMatsunamiki Sidewalk.jpg|
Goyu-shuku File:Oohasiya Inn.jpg|
Akasaka-juku (Tōkaidō) File:Toyokawatezutsu.jpg|Toyokawa Tezutsu Fireworks Festival File:Toyokawa Air Raid memorial.jpg|Memorial to the victims of the
Toyokawa Air Raid ==Government==