The Day of the Macedonian Revolutionary Struggle is celebrated on October 23rd each year in North Macedonia. This national holiday commemorates the establishment of the Internal Macedonian Revolutionary Organization (IMRO) in 1893. The holiday is celebrated on the occasion of the formation of the IMRO, which was a covert group that later became the symbol and flag for the struggle for Macedonian freedom. This holiday is an important cultural event in North Macedonia, and it is a non-working day.