Complex sentence: A performance in Chester in 1575 is the last recorded from the city until the 20th century, when the cycle was revived as part of Chester's Festival of Britain celebrations in June 1951, under the supervision of Christopher Ede.
Split into simpler sentences: A performance in Chester in 1575 is the last recorded from the city until the 20th century. The Chester cycle was then revived as part of the city's Festival of Britain celebrations in June 1951, under the supervision of Christopher Ede.