The Maynooth Catechism was a modified version of a Catechism drawn up in 1775 by Dr James Butler, Archbishop of Cashel. It was "ordered by the National Synod of Maynooth. . . . for General Use throughout the Irish Church" in 1882. A new revision was undertaken by a committee of priests, in 1892, under the direction of William Walsh, Archbishop of Dublin, but the revised catechism was never published. In the 20th century in Irish schools it was known as the "Green Catechism" from the colour of its cover.