What is "kojimachi"

is a neighborhood in Chiyoda, Tokyo.

Prior to the arrival of Tokugawa Ieyasu, it was known as . The area developed as townspeople settled along the Kōshū Kaidō. In 1878 Kōjimachi became a ward in the city of Tokyo. It was the forerunner of Chiyoda which is now a special ward. Kōjimachi was the birthplace of Japanese general and prime minister Hideki Tojo, who was hung for war crimes after World War II.

The Kōjimachi ward was larger than past day Kōjimachi. The area centered upon Kōjimachi including the districts of the Banchō area, Kudanminami, Kioichō, Hirakawachō and Hayabusachō is sometimes referred as the Kojimachi area (麹町地区).