A Title That Named One Shrine Until the State Stopped Deciding

Taisha, used on its own for most of Japanese history, referred specifically to Izumo Taisha, one of the country's oldest shrines, dedicated to Okuninushi and standing at the head of a network of affiliated shrines that shared devotion to the same deity, much as Ise stood at the head of the network built around Amaterasu. The title's exclusivity was itself a product of the same centralised ranking system that governed jinja and jingu: as long as the state decided which shrines counted as grand shrines, only a small number of the oldest and most significant, chiefly Izumo, held the taisha designation at all. That control ended with the same event that reshaped Shinto's whole institutional structure, the Shinto Directive of 1946 disestablishing state control over shrine administration.

Once no government body remained to withhold or grant the title, several other shrines of long standing and regional importance adopted the taisha designation for themselves in the decades that followed, so that a title once reserved by state fiat for essentially one shrine now describes a small but no longer fixed group of major shrines across the country, each claiming the same historic weight the word originally carried for Izumo alone.