What did kiev used to be called?

Kiev, the capital of Ukraine, was historically known as "Kyiv," reflecting its Ukrainian pronunciation. The city has a rich history, with its name derived from the legend of its founding by three brothers: Kyi, Shchek, and Khoryv. Over the centuries, it has also been referred to as "Kievan Rus" during the medieval period, highlighting its significance as a center of the East Slavic civilization.