One of the best-known differences between British and American English is the fact that the sport known as football in Great Britain is usually called soccer in the United States. Because the sport originated in England, it is often assumed that soccer is an Americanism. In fact, the word is thoroughly British in origin. So why is it that Americans (not to mention Canadians, Australians, and others) are likelier to use the word than Brits are? The answer lies in how the sport developed in each country. Although football-type games have been around for centuries, the sport we know today is often said to have begun in 1863, when England’s newly formed Football Association wrote down a set of rules. At the time, it was the most widely played game of its kind in the country, but it wasn’t the only one. Rugby football, named after an English boarding school, was a variation that allowed players to carry and run with the ball to advance it toward the goal. The game played under the Football Association’s rules thus became known as association football. Inevitably, the names would be shortened. Linguistically creative students at the University of Oxford in the 1880s distinguished between the sports of “rugger” (rugby football) and “assoccer” (association football). The latter term was further shortened to “soccer” (sometimes spelled “socker”), and the name quickly spread beyond the campus. However, “soccer” never became much more than a nickname in Great Britain. By the 20th century, rugby football was more commonly called rugby, while association football had earned the right to be known as just plain football.