Sengoku period to Tensho era
Before the Muromachi period, Okayama was one corner of a farm region and included a small castle built by the Kanemitsu. In the Sengoku period, Ukita Naoie attacked Okayama and attacked the castle for the transportation resources and extensive farmland in the region. Naoie remodeled the castle, built the old Sanyo road to the central part of the castle town, and called in tradesmen both from inside and outside of Bizen province. Okayama became the political and economical capital of Bizen province.
Edo period
In 1600, Ukita Hideie, who was the son of Naoie and the lord of Okayama, lost at the Battle of Sekigahara. The next year, Kobayakawa Hideaki came to Okayama and became the feudal lord of Okayama Domain. Hideaki died in 1602, however, ending the Kobayakawa line. Ikeda Tadatugu, who was the feudal lord of Himeji Domain, became the next lord of Okayama. After this time, Okayama was ruled by the Ikedas until the latter part of the 19th century. Continuing its economic development, Okayama became one of the ten best large castle towns in Japan in the 18th century. The Korakuen Garden was developed by the fourth feudal lord, Ikeda Tsunamasa.
Meiji Restoration to World War II
On August 29, 1871, the new Meiji government of the Empire of Japan replaced the traditional feudal domain system with centralized government authority (Prefectures of Japan). Okayama became the capital of Okayama Prefecture. In 1889, Okayama city was founded. In the Meiji period, a railroad was built in Okayama city that greatly enhanced the development of the city. For example, the Sixth Higher Middle School ( Dairoku K?t?gakk?) and Okayama Medical College ( Okayama Ika-daigaku) were established in Okayama city. Okayama became one of the most important places in western Japan for transportation and education. When World War II began, Okayama city had a Japanese Army base camp. On June 29, 1945, the city was
