Chichibu was incorporated as a city on April 1, 1950, although
Chichibu Province had already existed since before the
Nara period and the region has developed many local traditions. Chichibu Province was incorporated into
Musashi Province in the 7th century AD. During premodern times, the town developed as a marketplace of the district as well as the town around
Chichibu Shrine. The city's older name,
Ōmiya ("big shrine"), was derived from the shrine. Since its incorporation in 1950, the area of the city has grown through a series of mergers, the most recent in 2005.
Timeline • 708: Deposits of copper are discovered in the region and offered to the Imperial Court. The
era name Wadō (和銅, meaning "Japanese copper") is proclaimed in recognition of this welcome event in the initial months of
Empress Genmei's reign. The copper is used to mint
Wadō Kaihō or
Wadōkaichin, which are amongst the oldest examples of coinage in Japan.-- see image of
Wado Kaichin from Japan Mint Museum • 1884: The
Chichibu incident: uprising of impoverished peasants under the influence of the
Freedom and People's Rights Movement. Seven are sentenced to death and over 4,000 people punished. • 1889: Ōmiya Town was founded within
Chichibu District, Saitama with the establishment of the municipalities system • 1914: The
Chichibu Railway opened. • 1916: Ōmiya Town was renamed Chichibu Town. • 1950: Chichibu was elevated to city status. • 1954: Chichibu absorbed the villages of Odamaki, Haraya and Kuna. • 1957: Chichibu absorbed the villages of Takashino and Ōta. • 1958: Chichibu absorbed the town of Kagemori. • 1969: The
Seibu Chichibu Line opened. • 2005: Chichibu absorbed the town of
Yoshida, and the villages of
Arakawa and
Ōtaki (all from Chichibu District). ==Government==