History of the Jews in Russia abandoning of Jewish dietary laws. Polish Catholic boys were subject to similar pressure to convert and assimilate as the Russian Empire was hostile to Catholicism and Polish nationalism. The cultural and habitual isolation of the Jews gradually began to be eroded. An ever-increasing number of Jewish people adopted Russian language and customs. Russian education was spread among the Jewish population. A number of Jewish-Russian periodicals appeared. Alexander II was known as the "Tsar liberator" for the 1861 abolition of serfdom in Russia. Under his rule Jewish people could not hire Christian servants, could not own land, and were restricted in
Russia in the European energy sector which stretch beyond 2025–2030. A number of disputes in which Russia was using pipeline shutdowns in what was described as "tool for intimidation and blackmail" caused European Union to significantly increase efforts to diversify its energy sources. During an anti-trust investigation initiated in 2011 against Gazprom a number of internal company documents were seized that documented a number of "abusive practices" in an attempt to "segment the internal [EU] market along national borders" and impose "unfair pricing". Russia in the European energy sector The Russian Federation supplies a significant volume of fossil fuels and is the largest exporter of oil