Japan is a constitutional monarchy, with the Emperor as a symbolic head of state and the Prime Minister as the head of government.

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

The Toyota Prius, first introduced in 1997, is the world's first mass-produced hybrid car and has become a symbol of eco-friendly transportation.