Ukrainians in Russia include all the family of hetman Ivan Mazepa, A. Vojnarovsky, and those in Mazepa's Cossack forces that returned to Russia. Some were imprisoned in exile for the rest of their lives such as hetmanPavlo Polubotok, Pavlo Holovaty, P. Hloba and Petro Kalnyshevsky. Beginning in the 19th century, there was a continuous migration from Belarus, Ukraine and Northern Russia to settle the distant areas of the Russian Empire. The promise of free fertile land was an important factor for many peasants who until 1861, lived under Serfdom. In the colonization of the new lands, a significant contribution was made by ethnic
Coal in Russia Irkutsk and South Yakutsk basins. The two major coal producers in Russia are Rosugol and Donugol. Over two-thirds of coal produced in Russia is used domestically. Russia is self-sufficient in coal, and consumed 223 million tons of coal in 2009. The percentage of coal in Russian power generation has been declining since 1990, when it was 20.7%, due to increasing gas consumption as well as increasing nuclear and hydroelectric energy production. Currently only 14.4% of Russia's power is produced from coal. Coal in Russia Coal is one of the largest sources of energy in Russia, accounting for 14.4% of the