Alberta sun temple has 5,000-year-old calendar An aerial view of a 5,000-year-old stone cairn and other structures in southern Alberta that a maverick Edmonton scientist believes are the central features of an ancient sun temple and calendar that accurately marks the solstices and the equinoxes. Mainstream archeologists consider the rock-encircled cairn to be just another medicine wheel left behind by early aboriginals. But a new book by retired University of Alberta professor Gordon Freeman says it is in fact the centre of a 26-square-kilometre stone ``lacework" that marks the changing seasons and the phases of the moon with greater accuracy … [Read more...]