 In 2009, for the first time, the World Championships were held in the United States, in Philadelphia.The 2010-2019 championships were held in Glasgow, Dublin, Belfast, Boston, London, Montréal, Glasgow, Dublin, Glasgow, and Greensboro, respectively, always taking place during the week leading up to Easter Sunday, when the championships end.The BBC documentary film "Jig" provided an insight into championship level dancers competing in the 2010 World Championships held in Glasgow.