 In terms of national politics, the city is divided between Shizuoka 1st District and Shizuoka 4th District in the lower house of the Japanese Diet.The area that is now the city of Shizuoka has been inhabited since prehistoric times.Numerous kofun have been found within the city limits, and the Toro archaeological site indicates that a major Yayoi period (circa 400 BC–300 AD) settlement existed in what is now part of the central city area.