The oldest published laws of football (Rugby School, 1845) specify that the game is to be started with a "kick off" from the middle of the field of play, which must be a place-kick. Most codes of laws from this era provide for a similar "kick off" from the centre of the ground; these include the Cambridge rules of 1856, the Sheffield rules of 1858, and the rules for Harrow football of 1858. One exception is the laws for the Eton field game (1862), which specify instead a "bully" in the middle of the field (similar to a scrummage in rugby union).