Easter in Russia
Easter is one of the most important Russian holidays. According to the Orthodox calendar, the Russian Orthodox Church celebrates Easter in April or May. Russians celebrate Easter with decorated eggs and special foods. The egg tradition dates back to ancient times when people thought of eggs as fertility symbols. On Easter, kulich (Easter bread) and pashka, as well as eggs and meat are served. Often times, Russians have their food blessed by the church before the Easter meal. A tradition that occurs on Easter in Russia are the cracking of the the eggs with nails as a reminder of Jesus. Easter service is held Saturday evening and best attended mass of the year.
Work cited: http://goeasteurope.about.com/od/russia/a/easterinrussia.htm