The origin of sushi is said to be “nare-zushi,” fermented sushi born in Southeast Asia. It was introduced to Japan during the Nara period (710-794), where it was presented as a tribute to the Imperial Court. During the Muromachi period (1336-1573), when rice consumption became more ordinary among commoners, a shortened fermentation version called “namanare” emerged. The name comes from the fact that sushi is in a state close to being raw, and this is considered the prototype of modern sushi. In the Edo period (1603-1868), “haya-zushi,” sushi eaten without fermentation, emerged, evolving into nigiri-zushi, where the fish is pressed onto a small bed of rice. With the advancement of ice-making technology in the Meiji period (1868-1912), fish could be preserved, and raw fish began to be served as sashimi (without rice).
We can say that the common serving method seen in modern times was established during this period. While sushi was once synonymous with luxury cuisine, the emergence and widespread adoption of kaiten-zushi (conveyor belt sushi) transformed it into an affordable option for dining out.