1863: The Cambridge Rules are rewritten to provide the game's first uniform regulations.
1866: The offside law is changed to allow players to be onside provided there are three players between the ball and the goal.
1882: The associations in Great Britain unify their rules and form the International Football Association Board (IFAB) to control the laws of the game.
1886: The first official meeting of the IFAB takes place.
1891: Introduction of the penalty-kick.
1913: FIFA becomes a member of the IFAB.
1925: Amendment of the offside rule from three to two players.
1938: The present Laws of the Game are framed in a new system of codification, based on the Laws previously in force.
1958: Substitutes are permitted for the first time, albeit only for an injured goalkeeper and one other injured player.
1970: The system of red and yellow cards is introduced for the 1970 FIFA World Cup ™ finals.
1990: The offside law is changed in favour of the attacker, who is now onside if level with the penultimate defender.
1992: Goalkeepers are forbidden from handing back-passes.
1994: The technical area is introduced into the Laws of the Game, with the Fourth Official following the next year.
1996: Linesmen are renamed Assistant Referees.
1997: The Laws are revised.