What holiday is celebrated today in Russia? National Unity Day. On November 4, 1612, the militia led by Kuzma Minin and Prince Dmitry Pozharsky liberated Moscow from Polish invaders, say colleagues from On this day, the Russian Orthodox Church honors the memory of the Kazan Icon of the Mother of God and thanks her for her help in ridding Moscow of the invaders. In 1613, Tsar Mikhail Fedorovich established November 4 as the day of the purification of Moscow from Polish invaders, and in 1649, by order of Tsar Alexei Mikhailovich, this day became a church and state holiday. In the history of modern Russia, the Day of National Unity was established in 2004 and celebrated for the first time in 2005. Follow me: on TG on MAX on VK.