Japan's recorded history dates back to the 5th century AD, when the first known emperor, Emperor Jimmu, ascended to the throne.

Osaka Castle is a famous landmark in Osaka and a popular tourist attraction, with a museum that showcases the history of the castle and the city.

The 16th century saw the rise of Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu, who were instrumental in unifying Japan under a centralized government.