The Asuka period was a period in the history of Japan lasting from 538 to 710 (or 592 to 645), although its beginning could be said to overlap with the preceding Kofun period. The Yamato polity evolved greatly during the Asuka period, which is named after the Asuka region, about 25 km south of the modern city of Nara. The Asuka period is characterized by its significant artistic, social, and political transformations, having their origins in the late Kofun period. The introduction of Buddhism marked a change in Japanese society. The Asuka period is also distinguished by the change in the name of the country from Wa to Nippon.