The rites and habits associated with ‘midsummer’ clustered around a number of dates in Shakespeare’s time. The June solstice occurs on a day between the 20 and 22 June, but ‘Midsummer Day’ was fixed in the calendar as 24 June (also known as St John’s Day). Midsummer was one of the most popular and keenly-observed festivals throughout the early modern period. Rural communities marked it with Morris dancing, processions, late-night drinking, the blessing of crops and the ritual banishment of devils and other unwelcome sprites – precisely the sort of pagan-originating, Catholic-saint-encompassing mishmash that Protestant reformers despised. But by the...