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
Royal Oak, Calgary Oak and Rocky Ridge. William D. Pratt School, a new middle school located near Royal Oak School, opened in 2016 serving students in grades 4-9 residing in Royal Oak and Rocky Ridge. It is named for Bill Pratt a longtime Calgary contracting general manager, who was chair of the Calgary Olympics, co-founder of the Canada Trail, and member of both the Olympic Order and the Order of Canada. Students in grades 10-12 from Royal Oak are served by Robert Thirsk High School in Arbour Lake, as well as St. Francis High School in Brentwood for students in the Catholic school