Several games were played between Sheffield and London teams, using both sets of rules. After several disputes, the two codes were unified in 1877 when the Sheffield Football Association voted to adopt the FA laws, following the adoption of a compromise throw-in law by the FA.[8] The Sheffield rules had a major influence on how the modern game of football developed. Among other things they introduced into the laws of the game are the concepts of corners, and free kicks for fouls.[9]