Many sports popular today were formalised by British Public schools and universities in the 19th century. These schools produced the civil servants and military and naval officers required to build and maintain the British empire, and team sports were considered a vital tool for training their students to think and act as part of a team. Former public schoolboys continued to pursue these activities, and founded organisations such as the Football Association (FA). Today's association of football with the working classes began in 1885 when the FA changed its rules to allow professional players.
Who created and popularized many of the sports that we love today? Why were sports important in these schools? Who founded organizations like the FA? What changed in 1885 due to the FA changing rules?