Unity Day (also called National Unity Day or National Unity Day, Russian: День народного единства, Den 'narodnogo yedinstva) is a national holiday in Russia celebrated on November 4th.
This day is in memory of the popular uprising that expelled the Polish occupation forces from Moscow in November 1612, and more generally the end of the Time of troubles and the turning point in the Polish-Moscow war (1605-1618).
The name of the day alludes to the idea that all strata of Russian society united to preserve the Russian state, when there were no tsars or fathers to guide them.
In 1613 Emperor Mikhail Romanov instituted a holiday called "Moscow Liberation Day Polish Invaders". It was celebrated in the Russian Empire until 1917, when it was replaced in the wake of the Russian Revolution.Unity Day was returned by the Russian Federation in 2005, and has since been celebrated on November 4th. It is also the holiday of the Russian Orthodox emblem of "Our Lady of Kazan", a sacred symbol of the upper class of the Russian Orthodox Church.
November 4 is also Use Your Common Sense day & National Unity & Armed Forces Day in Italy