Monument to Minin and Pozharsky in Moscow
This is Russia's newest holiday. It is always celebrated on 4 November.
It was created in 2004 and celebrates the liberation of Moscow from Polish troops in 1612, led by Kuzma Minin and Dmitry Pozharsky. This event marked the end of the "time of troubles" and foreign intervention in Russia. It led to Mikhail Romanov’s accession to the throne.
The event was marked by a public holiday which was celebrated in Russia on 22 October from 1649 till 1917.
The name of the day is in recognition that all the classes of Russian society united to save Russia, even though there was no Tsar to lead them.
It is generally assumed that the day has been reinstated as a holiday as a replacement for Revolution Day (7 November) that celebrated the 1917 October Revolution, which had been removed as a national holiday. Without a replacement, Russians would have been faced with a stretch from June to January without a national holiday.
Given its closeness to the old holiday, many Russians probably haven't noticed that much change and to help the transition, the holiday is celebrated in the same manner as the old holiday with fireworks, food, and drink.