tri fiche An Meitheamh, De' Ceadaoin( 23 June, Wednesday), or in Manx three fichead Mean Souree Midsummers Eve - the ancient solar feast which is celebrated with bofires and various associated events. Also known as St. John's Eve. In 1725 The Malt Riots occurred in Glascow. Folks were disturbed by high taxes imposed on Scottish malts.