甲州街道
The area of present-day Hachiōji was part of ancient Musashi Province. It has been an important junction point and post town along the "Kōshū Kaidō", the main road that connected the historical Edo (today's Tokyo) with western Japan. Hachiōji Castle was built during the Sengoku period in 1584 by Hōjō Ujiteru, but was destroyed in 1590 by Toyotomi Hideyoshi. During the Edo period, the area was "tenryō" controlled directly by the Tokugawa shogunate. In the post-Meiji Restoration cadastral reform of July 22, 1878, the area became part of Minamitama District in Kanagawa Prefecture. The town of Hachiōji was created on April 1, 1889, with the establishment of the modern municipalities system. Minaitama District was transferred to the administrative control of Tokyo Metropolis on April 1, 1893. Hachiōji gained city status on September 1, 1917.