Swimming has been known since prehistoric times. The earliest data pool available from the stone age through the 7000 years ago painting. A written document dating from about 2000 BC. Pool became a sport in the modern Olympic Games in Athens in 1896 first. In 1902 Richard Cavill introduced swimming styles slithered down to the Western world. In 1908, the world swimming Federation, the Fédération Internationale de Natation (FINA), was formed. Butterfly was developed in the 1930s and was at first considered a variant of breaststroke, until it was accepted as a separate style in 1952
đang được dịch, vui lòng đợi..