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

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

The Japanese woodpecker is a species of woodpecker that is found throughout Japan's forests and is known for its distinctive red head.