Golden Kamuy Wikia
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Golden Kamuy Wikia

Hokkaido (北海道, literally "Northern Sea Circuit"), formerly known as Ezo(蝦夷), Yezo, Yeso, or Yesso, is the second largest island of Japan, and the largest and northernmost prefecture. The Tsugaru Strait separates Hokkaido from Honshu(本州). The two islands are connected by the undersea railway Seikan Tunnel. The largest city on Hokkaido is its capital, Sapporo, which is also its only ordinance-designated city. About 43 km north of Hokkaido lies Sakhalin Island, Russia.

Abe no Hirafu(阿倍比羅夫) led a large navy and army to northern areas from 658 to 660 and came into contact with the Mishihase and Emishi. One of the places Hirafu went to was called Watarishima (渡島), which is often believed to be present-day Hokkaido. However, many theories exist concerning the details of this event, including the location of Watarishima and the common belief that the Emishi in Watarishima were the ancestors of the present-day Ainu people.

During the Nara and Heian periods (奈良-平安時代, 710–1185), people in Hokkaido conducted trade with Dewa(出羽) Province, an outpost of the Japanese central government. From the Middle Ages, the people in Hokkaido began to be called Ezo. Hokkaido subsequently became known as Ezochi (蝦夷地, lit. "Ezo-land") or Ezogashima (蝦夷ヶ島, lit. "Island of the Ezo"). The Ezo mainly relied upon hunting and fishing and obtained rice and iron through trade with the Japanese.

During the Muromachi period (室町時代, 1336–1573), the Japanese created a settlement at the south of the Oshima Peninsula, with a series of fortified residences such as that of Shinoridate. As more people moved to the settlement to avoid battles, disputes arose between the Japanese and the Ainu. The disputes eventually developed into a war. Takeda Nobuhiro killed the Ainu leader, Koshamain, and defeated the opposition in 1457. Nobuhiro's descendants became the rulers of the Matsumae-han, which was granted exclusive trading rights with the Ainu in the Azuchi-Momoyama and Edo periods (安土桃山-江戸時代, 1568–1868). The Matsumae family's economy relied upon trade with the Ainu. They held authority over the south of Ezochi until the end of the Edo period in 1868.

The Matsumae clan rule over the Ainu must be understood in the context of the expansion of the Japanese feudal state. Medieval military leaders in northern Honshū (ex. Northern Fujiwara, Akita clan) maintained only tenuous political and cultural ties to the imperial court and its proxies, the Kamakura Shogunate(鎌倉幕府) and Ashikaga Shogunate. Feudal strongmen sometimes located themselves within medieval institutional order, taking shogunal titles, while in other times they assumed titles that seemed to give them a non-Japanese identity. In fact, many of the feudal strongmen were descended from Emishi military leaders who had been assimilated into Japanese society. The Matsumae clan were of Yamato descent like other ethnic Japanese people, whereas the Emishi of northern Honshu were a distinctive group related to the Ainu. The Emishi were conquered and integrated into the Japanese state dating back as far as the 8th century, and as result began to lose their distinctive culture and ethnicity as they became minorities. By the time the Matsumae clan ruled over the Ainu most of the Emishi were ethnically mixed and physically closer to Japanese than they were to Ainu. This dovetails nicely with the "transformation" theory that native Jōmon peoples changed gradually with the infusion of Yayoi immigrants into the Tōhoku rather than the "replacement" theory which posits that one population (Jōmon) was replaced by another (Yayoi).

There were numerous revolts by the Ainu against the feudal rule. The last large-scale resistance was Shakushain's Revolt in 1669–1672. In 1789, a smaller movement, the Menashi–Kunashir rebellion, was also crushed. After that rebellion, the terms "Japanese" and "Ainu" referred to clearly distinguished groups, and the Matsumae were unequivocally Japanese. After the arrival of Adam Laxman, in 1799–1821 and 1855–1858 the Edo Shogunate took direct control over Hokkaido in response to a perceived threat from Russia.

Leading up to the Meiji Restoration, the Tokugawa Shogunate realized there was a need to prepare northern defenses against a possible Russian invasion and took over control of most of Ezochi. The Shogunate made the plight of the Ainu slightly easier, but did not change the overall form of rule.

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-fu (箱館府), Hakodate Prefectural Government. When establishing the Development Commission (開拓使, Kaitakushi), 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.

The primary purpose of the Development Commission was to secure Hokkaido before the Russians extended their control of the Far East beyond Vladivostok. Kuroda Kiyotaka was put in charge of the venture. His first step was to journey to the United States and recruit Horace Capron, President Grant's Commissioner of Agriculture. From 1871 to 1873 Capron bent his efforts to expounding Western agriculture and mining with mixed results. Capron, frustrated with obstacles to his efforts returned home in 1875. In 1876, William S. Clark arrived to found an agricultural college in Sapporo. Although he only remained a year, Clark left a lasting impression on Hokkaido, inspiring the Japanese with his teachings on agriculture as well as Christianity. His parting words, "Boys, be ambitious!", can be found on public buildings in Hokkaido to this day. The population of Hokkaido boomed from 58,000 to 240,000 during that decade.

In 1882, the Development Commission was abolished. Transportation on the island was still underdeveloped, so the prefecture was split into several "sub-prefectures" (支庁 shichō), namely Hakodate Prefecture (函館県, Hakodate-ken), Sapporo Prefecture (札幌県, Sapporo-ken), and Nemuro Prefecture (根室県, Nemuro-ken), that could fulfill administrative duties of the prefectural government and keep tight control over the developing island. In 1886, the three prefectures were demoted, and Hokkaido was put under the Hokkaido Agency (北海道庁, Hokkaidō-chō). These sub-prefectures still exist today, although they have much less power than they possessed before and during World War II; they now exist primarily to handle paperwork and other bureaucratic functions.

In mid-July 1945, various shipping ports, cities, and military facilities in Hokkaido were attacked by the United States Navy's Task Force 38. On 14–15 July that year, aircraft operating from the task force's aircraft carriers sank and damaged a large number of ships in ports along Hokkaido's southern coastline as well as in northern Honshu. In addition, on 15 July a force of three battleships and two light cruisers bombarded the city of Muroran. Before the Japanese surrender was formalized, the Soviet Union made preparations for an invasion of Hokkaido, but President Harry Truman made it clear that the surrender of all of the Japanese home islands would be carried out by General MacArthur per the 1943 Cairo Declaration.

Hokkaido became equal with other prefectures in 1947, when the revised Local Autonomy Law became effective. The Japanese central government established the Hokkaido Development Agency (北海道開発庁, Hokkaidō Kaihatsuchō) as an agency of the Prime Minister's Office in 1949 to maintain its executive power in Hokkaido. The Agency was absorbed by the Ministry of Land, Infrastructure and Transport in 2001. The Hokkaido Bureau (北海道局, Hokkaidō-kyoku) and the Hokkaido Regional Development Bureau (北海道開発局, Hokkaidō Kaihatsukyoku) of the Ministry still have a strong influence on public construction projects in Hokkaido.

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