city, Tokyo to (metropolis), Honshu, Japan. It is bordered by Tokyo city (east) and the Tama River (south). During the Tokugawa period (1603–1867), Chōfu was a post town on the Kōshū Highway. After its connection to Tokyo by railway in the early 1920s, industrialization progressed rapidly. Chōfu's products now include machinery, electrical equipment, chemicals, and foods. Since World War II, Chōfu has become a residential suburb of the Tokyo-Yokohama metropolitan area. The Jindai (“Age of the Gods”) Temple in the northern part of the city was built in 733. Chōfu has a racetrack and an amusement park. Pop. (2005) 216,119.