The bento tradition began in the Kamakura period (1185–1333) when samurai carried portable meals—rice, dried fish, vegetables—in wooden or bamboo boxes. By the Edo period (1603–1868), bento became elaborate, decorative, and commercially sold at theaters and train stations.
Today, bento is a cultural staple: homemade or store-bought, simple or artistic (kyaraben), reflecting Japanese aesthetics of balance, seasonality, and presentation.