Tosa (historical region)

Tosa was a historical province in western Japan, located on the Yamaguchi Peninsula, now part of Kochi Prefecture. Historically, it was known for its rugged landscapes, mountainous terrain, and a rich tradition of fishing, agriculture, and sword-making. During the Edo period, Tosa was a key territory controlled by the powerful Tosa Clan, which played a significant role in Japan’s political and social developments. Today, the region is recognized for its cultural heritage, including traditional crafts like Tosaindigo dyeing and the famous Tosa swords, along with scenic natural beauty and a strong regional identity.