 Complete the following phrase:  Thirteen sports venues were used for the 1908 Summer Olympics. The first winter sports took place at Princes Skating Club in Knightsbridge. White City Stadium served as a precursor to modern stadiums. The figure skating events were not held at the next Olympics in Stockholm, but returned for the 1920 Games in Antwerp, heralding the first Winter Olympics that took place in Chamonix in 1924. White City was the main venue for the 1934 British Empire Games known as the Commonwealth Games since 