Caid (Irish pronunciation: [kadʲ]) is the name given to various ancient and traditional Irish football games. "Caid" is now used by people in some parts of Ireland to refer to modern Gaelic football. The word caid originally referred to the ball which was used. It was made out of animal skin, with a natural bladder inside. Caid is believed to have influenced the modern sport of Gaelic football the rules of which were officially published in 1887 and is now organised and governed by the Gaelic Athletic Association (GAA) as an amateur sport.