One of the first worm charming events took place in a school fête at Willaston County Primary School in Willaston, Cheshire. The World Worm Charming Championships started in 1980 and is now an annual event that celebrates the sport. It was organised by then-deputy headmaster John Bailey, who wrote the original rules for the competition.

The current world record was established on June 29, 2009, by 10-year-old Sophie Smith of Willaston, England, who raised 567 worms during Britain's World Worm Charming Championship.

Rules of The British and European Federation of Wormcharmers include a plot no greater than 3 metres by 3 metres, a five-minute warm up period, a three-person team of charmer, catcher and counter and that all worms must be returned to the ground after the contest according to the British Association of Worm Length Supporters (BAWLS).

More Info: en.wikipedia.org