Olha had converted from paganism to Christianity in 955 and, with Volodymyr, is credited with bringing Christianity to a pagan land in 988.
The reign of Jaroslav the Wise (1036-1054) is often seen as the pinnacle in the history of Kievan Rus.
It is comparable, both in population (about 52 million) and size (233,089 square miles) to France.
Although most of western Ukraine is agricultural—it is a country that has served as the "bread-basket of Europe"—there are large petroleum and natural gas fields as well.
Major industrial products include refined sugar, iron, steel, tractors, cement, glass, paper, and fertilizer.
The earliest evidence of human settlement in Ukraine dates back 150,000 years.
Early inhabitants of the territory included the Balkans, the Cimmerians (the first nomadic horsemen to appear in Ukraine in about 1500 to 1000 ).