Ezochi from the Medieval Period through the Modern Times

Hokkaido was called Ezogashima (Ezo Island) or Ezochi (Ezo region) from the medieval period to the modern times. Ezo refers to people of the Satsumon culture, which was subsequently replaced by the Ainu culture. At that time, the Wajin (Japanese from Honshu) lived in the southern part of Hokkaido, where the Matsumae clan was established as the northernmost clan of Japan. Another Japanese history developed in the northern land.

Ezochi from the medieval period to the modern times

“Suwa Daimyojin Ekotoba” written in the 14th century documented Hokkaido during the medieval period. According to this document, groups of people called Hinomoto, Karako and Watarito lived in Ezo-ga-chishima. It is believed that Hinomoto and Karako refer to the Ainu people, and Watarito refers to the Wajin people.

Based on thriving trade between Ainu and Wajin people, Chinese pottery and bronze coins were imported into Hokkaido, while Hokkaido’s kelp and salmon were exported to Honshu. Tosaminato Port on the Tsugaru Peninsula, the center of this trade, was controlled by the Ando clan, which ruled the region as the local Ezo government.

It is known that more than ten castles were built by Wajin lords in southern Hokkaido at that time. After a series of conflicts between these lords and the battle of Koshamain, the Kakizaki clan (their family name was later changed to Matsumae) gained power over the region. In the 16th century, the center of trade between Ainu and Wajin people shifted to Matsumae; however, the Ainu actually traveled to Honshu to trade freely with the Wajin on equal terms.

After the Matsumae clan was granted certification (kokuin-jo) for exclusive rights to trading with the Ainu people in 1604, the clan strengthened its control of the Ainu and Ezochi. In the 1630s, a system called “akinaiba chigyo” was introduced, and the trade rights were given to vassals, facilitating Wajin people to settle in Ezochi and perform gold mining.

This system created unfavorable trading conditions for Ainu people, and their dissatisfaction led to the War of Shakushain in 1669. Defeated in the war, the Ainu people were placed under the strict control of the Matsumae clan.

Meanwhile, the owners of the trading posts allowed Wajin merchants to manage the trading posts, thus merchants started gaining power in the Wajin society, while owners received taxes from the contracted merchants. A system of contracting the operation of fishing grounds and the management of Ainu to merchants was established in the early 18th century.

The Ainu people began to work under the Wajin for wages and purchased goods from the Wajin, which prevented the Ainu from practicing free trade with the Wajin.

Matsumae Clan: Prosperity and Culture

As rice could not be grown on the Matsumae clan’s territory, it was impossible to measure the scale of its feudal domain in terms of rice production, such as Kaga Hyakumangoku (meaning that the Kaga clan had an annual rice production of one million koku).
For this reason, the Matsumae clan was referred to as a feudal domain without rice production. The economy of the Matsumae clan depended only on products produced in Ezochi and trade activities.

In the Edo period, a physical distribution network connecting Ezochi and Osaka via the Sea of Japan using Kitamaebune cargo vessels was established. Kelp and other local products were exported from Ezochi, not only to Japan, but also to China via Nagasaki, Satsuma and Ryukyu.

The shipping ports of Esashi, Matsumae and Hakodate, which were referred to as Matsumae Sanso, are said to have enjoyed greater prosperity than Edo. The prosperous towns are depicted on the Matsumae folding screen.

Many temples were built in the three port towns and Matsumae Castletown, and merchants and fishermen from Tsugaru and Shimokita moved to the towns to find work. The towns were influenced by the culture of the Kyoto and Osaka areas transported by the Kitamaebune cargo vessels.

In the 18th century, boiled and pressed herring was transported from Ezochi to Honshu and used as fertilizer to grow rice and commercial crops including Chinese indigo and cotton, and played a significant role in the development of industry during the Edo period.

Hakyo Kakizaki was a great painter of the era of the Matsumae domain. Having studied Maruyama school paintings established by Okyo Maruyama and Chinese Song Dynasty paintings, he left behind numerous works. Among his paintings, Ishuretsuzo is particularly famous.

In 1789 (the first year of the Kansei era), the Ainu people in eastern Hokkaido rose up in Kunashiri-Menashi to fight against the oppressive control of the trading posts by the Wajin. Ishuretsuzo is a series of portraits of local Ainu chiefs, and each painting is considered a masterpiece that depicts the pride of Ainu chiefs.

Another Kurofune (Black Ships): The End of the Edo Period in Ezochi