The GAA All-Ireland Championships are the premier competitions in Gaelic football and hurling, organized by the Gaelic Athletic Association (GAA) in Ireland. These championships determine the best teams in each sport and culminate in the All-Ireland finals, typically held in September. The competitions feature teams from various counties across Ireland, competing in a knockout format. The All-Ireland Championships have a rich history, with the first hurling championship taking place in 1887 and the first football championship in 1888, making them integral to Irish culture and sports heritage.