北海道が日本の一部になったのはいつ
Hokkaido was known as Ezochi until the Meiji Restoration. Shortly after the Boshin War in 1868, a group of Tokugawa loyalists led by Enomoto Takeaki temporarily occupied the island (the polity is commonly but mistakenly known as the Republic of Ezo), but the rebellion was crushed in May 1869. Ezochi was subsequently put under control of , Hakodate Prefectural Government. When establishing the , the Meiji Government introduced a new name. After 1869, the northern Japanese island was known as Hokkaido; and regional subdivisions were established, including the provinces of Oshima, Shiribeshi, Iburi, Ishikari, Teshio, Kitami, Hidaka, Tokachi, Kushiro, Nemuro and Chishima.
1869