Soccer outdoor ball and goal game, also called association football or simply football
. The first recorded game probably was that on a Shrove Tuesday in Derby, England, part of a festival to celebrate a victory over a contingent of Roman troops (AD 217). By 1175 the Shrove Tuesday soccer game was an annual event.
The sport remained popular for centuries in England under the name football. But the advent of rugby (1823) as a variant led to confusion. The London Football Association was formed (1863) to further the game that emphasized the kicking of the ball. This became known as association football and then, through abbreviation, as soccer. It was rapidly adopted in continental Europe, where it still generally goes under the name football. Other related sports called football are popular in countries including Ireland and Australia.