When was Irish Derby created?

The Irish Derby was first held in 1866, and has been held every year since, with the exception of 1919, when it was cancelled due to the Irish War of Independence. The race is held at the Curragh Racecourse in County Kildare, Ireland, and is one of the most prestigious races in the Irish racing calendar. The race is open to three-year-old thoroughbred horses and is run over a distance of one and a half miles. The Irish Derby is also a part of the European Classic Series, which includes the 2000 Guineas, the Epsom Derby, the Prix du Jockey Club, and the St Leger Stakes.