A culture tied to the river
In the Saru River basin of Hokkaido, the town of Biratori holds a district called Nibutani, a modern hub of Ainu culture. For centuries, the Ainu way of life here was inseparable from the river. Their sustenance came from its flow, particularly the annual runs of chum salmon (Oncorhynchus keta), which they called kamui chep, or "divine fish." Ainu society developed sophisticated fishing techniques, including the use of weirs and spears called marek. This river-based existence defined their cosmology and community structure. Everything changed during the Meiji Restoration in 1868.
The new Japanese government aggressively colonized Hokkaido, which the Ainu call Ainu Moshiri ("land of the humans"). The government implemented assimilationist policies, culminating in the 1899 "Hokkaido Former Aborigines Protection Act." This law pushed the Ainu into agriculture, seizing their land for Japanese settlers and banning many of their traditions. Salmon fishing, deer hunting, the Ainu language, and even cultural practices like women's facial tattoos were outlawed. In Nibutani, the community resisted this pressure, working to maintain their cultural connection to the Saru River.
The dam and the court
In the 1970s, the Japanese government began work on the Saru River Multipurpose Development Project, which included the Nibutani Dam. The construction, which began in earnest in the 1980s, would flood a valley containing sacred Ainu sites, traditional fishing grounds, and the lands of Ainu farmers. Two local Ainu men, Kayano Shigeru and Kaizawa Tadashi, refused to sell their land to the government. After their land was forcibly expropriated in 1989, they filed a lawsuit.
The legal battle lasted for years. On March 27, 1997, the Sapporo District Court delivered a landmark decision. For the first time in Japanese history, a court officially recognized the Ainu as an indigenous people. The ruling stated the government had acted illegally by failing to consider the dam's impact on Ainu culture, a right protected under Japan's constitution and the International Covenant on Civil and Political Rights. By the time of the verdict, the dam was almost complete, so the court did not order its removal. Still, the legal precedent was significant. It led directly to the repeal of the 1899 assimilationist law and the passage of the 1997 Ainu Cultural Promotion Act. Today, Nibutani is a hub for Ainu artisans, with museums and workshops focused on preserving the culture that refused to disappear.