Kyiv
The name Kiev is said to derive from the name of Kyi, one of four legendary founders of the city (brothers Kyi, Shchek, Khoryv and sister Lybid'). During its history, Kiev, one of the oldest cities in Eastern Europe, passed through several stages of great prominence and relative obscurity. The city may have been founded in the 5th century as a trading post, perhaps part of the land of the early Slavs. It gradually acquired eminence as the centre of the East Slavic civilization, becoming in the tenth to twelfth centuries a political and cultural capital of Rus', a medieval East Slavic state. Completely destroyed during the Mongol invasion in 1240, the city lost most of its influence for the centuries to come. It was a provincial capital of marginal importance in the outskirts of the territories controlled by its powerful neighbours; first the Grand Duchy of Lithuania, followed by Poland and Russia.