The Day of the Autonomous Republic of Crimea is observed in Ukraine every January 20 to commemorate the 1991 Crimean sovereignty referendum, which resulted in the re-establishment of the Crimean Autonomous Soviet Socialist Republic. This observance reflects on the peninsula's complex history, including its control by various empires and its status changes throughout the 20th century. Although not an official holiday, the government of the republic has historically organized festive events to mark the occasion. The day serves as a symbol of hope for Ukrainians regarding the restoration of control over Crimea, particularly following its annexation by Russia in 2014. Additionally, it is followed by the Day of Resistance to Occupation of Crimea and Sevastopol, observed six days later.