Czech Statehood Day is observed in the Czech Republic every September 28, coinciding with the feast of St. Wenceslaus, the country's patron saint. This holiday commemorates the legacy of Wenceslaus, who became Duke of Bohemia at the age of 18 and played a significant role in converting the region to Christianity. He is remembered as a wise and just ruler, and his murder by his brother Boleslav only strengthened the Christian faith in the duchy. Following his death, Wenceslaus was canonized and posthumously declared king, and his feast day has been recognized as Czech Statehood Day since 2000. The holiday celebrates Czech statehood and the historical significance of Wenceslaus in the nation's heritage.