Swimming has been recorded of swimming dates back to Stone Age paintings from around 7,000 years ago. Written references date from 2000 BC. In 1578, Nikolaus Wynmann, a German professor of languages, wrote the first swimming book, The Swimmer or A Dialogue on the Art of Swimming. Competitive swimming in Europe started around 1800. The English are considered the first modern society to develop swimming as a sport. By 1837 swimming competitions were being held in London’s six artificial pools, these competitions were organized by the National Swimming Society in England. As the sport grew in popularity many more swimming pools were built, and when a new governing body, the Amateur Swimming Association of Great Britain, was organized in 1880, it numbered more than 300 member clubs. Swimming is governed by the Fédération Internationale de Natation Amateur (FINA).