Kievan Rus' was founded by the Rus' people, who came from Scandinavia across Ladoga and settled in Kiev around 880 AD.
Kievan Rus' included the central, western and northern part of modern Ukraine, Belarus, far eastern strip of Poland and the western part of present-day Russia.
A Cossack republic emerged and prospered during the 17th and 18th centuries, but its territory was eventually split between Poland and the Russian Empire, and later merged fully into Russia.
During the 20th century three periods of independence occurred.
Beginning in the sixth century BC, colonies of Ancient Greece, Ancient Rome and the Byzantine Empire, such as Tyras, Olbia and Chersonesus, were founded on the northeastern shore of the Black Sea.
These colonies thrived well into the 6th century AD.
By 4,500 BC, the Neolithic Cucuteni-Trypillian Culture flourished in a wide area that included parts of modern Ukraine including Trypillia and the entire Dnieper-Dniester region.
During the Iron Age, the land was inhabited by Cimmerians, Scythians, and Sarmatians.
These events formed the background for the annexation of Crimea by Russia in March 2014, and the War in Donbass in April 2014.The dominant religion in the country is Eastern Orthodoxy, which has strongly influenced Ukrainian architecture, literature and music.It is a member of the United Nations since its founding, the Council of Europe, OSCE, GUAM, and one of the founding states of the Commonwealth of Independent States (CIS).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, the Ottoman Empire, Austria-Hungary, and Russia.