From the People's Militia to a National Holiday: The History of National Unity Day Four hundred years ago, the union of forces helped liberate Moscow and restore state power in a country that had been destroyed during the Troubles. National Unity Day, which Russia celebrates on November 4, is dedicated to the memory of these events. The modern holiday appeared in 2005, but its historical roots go back to the 17th century. The main thing about the holiday is in the cards and we have gathered all the details in the text. Happy holiday, Russians!