 In 1912 the border between Kanagawa and Tokyo prefectures was established in the Tama.On July 1, 1924, the independent city (shi-) of Kawasaki with 48,394 inhabitants was formed through a merger with the city of Daishi (formerly Daishigawara) and the village of Miyuki.As part of World War II, the city was bombed three times by the United States Army Air Forces (USAAF) between April 1945 and July 1945.