The document discusses the history of Japanese food from the 16th century to modern times. It traces foreign influences that introduced foods like tempura, bread, and peppers. In the early modern era, a peace dividend led to an agricultural boom and the spread of new crops from the Americas. Everyday meals for common people centered around rice with soup and pickles, while elites had more variety. Sushi originated as a preservation method and street food before becoming popular nationwide. Modern refrigeration and globalization have made sushi and sashimi accessible worldwide.