In 2013, after the government of President Yanukovych had decided to suspend the Ukraine-European Union Association Agreement and seek closer economic ties with Russia, a several-months-long wave of demonstrations and protests known as the Euromaidan began, which later escalated into the 2014 Ukrainian revolution that led to the overthrow of President Yanukovych and his cabinet and the establishment of a new government.These events formed the background for the annexation of Crimea by Russia in March 2014, and the War in Donbass in April 2014.The Antes were the ancestors of Ukrainians: White Croats, Severians, Polans, Drevlyans, Dulebes, Ulichians, and Tiverians.
Northern migrations, reaching almost to the Ilmen Lakes, led to the emergence of the Ilmen Slavs, Krivichs, and Radimichs, the groups ancestral to the Russians.
After an Avar raid in 602 and the collapse of the Antes Union, most of these peoples survived as separate tribes until the beginning of the second millennium.
During the Middle Ages, the area was a key centre of East Slavic culture, with the powerful state of Kievan Rus' forming the basis of Ukrainian identity.
Following its fragmentation in the 13th century, the territory was contested, ruled and divided by a variety of powers, including Lithuania, Poland, Austria-Hungary, the Ottoman Empire and Russia.
Kievan Rus' was founded by the Rus' people, who came from Scandinavia across Ladoga and settled in Kiev around 880 AD.