Cricket World Cup
In the early 1960s, English county cricket teams began playing a shortened version of cricket which only lasted for one day. Starting in 1962 with a four-team knockout competition known as the Midlands Knock-Out Cup, and continuing with the inaugural Gillette Cup in 1963, one-day cricket grew in popularity in England. A national Sunday League was formed in 1969. The first One-Day International event was played on the fifth day of a rain-aborted Test match between England and Australia at Melbourne in 1971, to fill the time available and as compensation for the frustrated crowd. It was a forty over match with eight balls per over.