St. Wenceslas Day is celebrated on September 28th in the Czech Republic to honor Saint Wenceslas, the patron saint of the country. This day commemorates his life and legacy as a ruler who promoted Christianity and unity among the Czech people in the 10th century. The holiday is marked by various events, including church services and cultural activities. Many people visit Wenceslas Square in Prague, where a statue of the saint stands, to pay their respects. It is a public holiday, allowing citizens to reflect on their national identity and heritage.