Oak apple 29 May that commemorated the Restoration of Charles II in 1660. The popular name refers to the event during the English Civil War when Charles hid in an oak tree. The commemoration persists in some areas today, although festivities have little to do with the Restoration. Oak apple Oak apple or oak gall is the common name for a large, round, vaguely apple-like gall commonly found on many species of oak. Oak apples range in size from in diameter and are caused by chemicals injected by the larva of certain kinds of gall wasp in the family Cynipidae. The adult
Charles II of England founded a number of schools, including the Royal Mathematical School in London and The King's Hospital in Dublin, as well as the Erasmus Smith schools in various parts of Ireland. The anniversary of the Restoration (which was also Charles's birthday)—29 May—was recognised in England until the mid-nineteenth century as Oak Apple Day, after the Royal Oak in which Charles hid during his escape from the forces of Oliver Cromwell. Traditional celebrations involved the wearing of oak leaves but these have now died out. Charles II is commemorated by statues in London's Soho Square, in Edinburgh's Parliament Square, in St Mary's