There was possibly a prehistoric hillfort on Calton Hill and an area used for quarrying (the Quarry Holes at the eastern end). By his charter of 1456, James II granted the community of Edinburgh the valley and the low ground between Calton Hill and Greenside for performing tournaments, sports and other warlike deeds. This was part of his policy of military preparedness that saw the Act of 1457 banning golf and football and ordering archery practice every Sunday. This natural amphitheatre was also used for open-air theatre and saw performances of the early Scots play "Ane Pleasant Satyre of the Thrie Estaitis" by Sir David Lyndsay. In May 1518 the Carmelite Friars (also known as White Friars and locally based at South Queensferry), were granted lands by charter from the city at Greenside and built a small monastery there.