Saint Patrick's Day is celebrated on March 17th each year, honoring Saint Patrick, the patron saint of Ireland. The day commemorates his arrival in Ireland and the spread of Christianity throughout the country. It is a public holiday in Ireland and is marked by various festivities, including parades, wearing green, and displaying shamrocks. Traditionally, people celebrate by attending church services and enjoying festive meals. In many places around the world, especially in countries with large Irish communities, Saint Patrick's Day has evolved into a celebration of Irish culture, featuring music, dancing, and the enjoyment of Irish food and beverages.