Football has been included in every Summer Olympic Games except 1896 and 1932 as a men's competition sport. Women's football was added to the official program in 1996.

Football or soccer is a sport played between two teams of eleven players with a spherical ball. It is played by 250 million players in over 200 nations, making it the world's most popular sport. The game is played on a rectangular field with a goal at each end. The object of the game is to score by getting the ball into the opposing goal.

Football can be traced to as far back as the Medieval period in Britain (medieval football). The modern game of association football originates from the formation of The Football Association in London, England in 1863 based on multiple efforts to standardize the varying forms of the game.

The name association football was coined to distinguish the game from the other versions of football played at the time, such as rugby football. The term association football has never been widely used. The word soccer is an abbreviation of association (from assoc.) and first appeared in universities in the 1880s (sometimes using the variant spelling "socker"). For nearly a hundred years after it was coined, soccer was an uncontroversial alternative to football, often in colloquial and juvenile contexts, but also in formal speech and writing. In the late twentieth century some speakers of British English began to deprecate soccer for reasons that remain unclear; it is possible they mistook it for an Americanism.

Numerical denomination and date surrounded by geometric patterns and Southern Cross.

Crux is a constellation located in the southern sky in a bright portion of the Milky Way, and is the smallest but one of the most distinctive of the 88 modern constellations. Its name is Latin for cross, and it is dominated by a cross-shaped or kite-like asterism that is commonly known as the Southern Cross.