Headstones were originally based on an ancient tradition related to death. It was a commonly held belief that in order for the dead to remain in the grave, large piles of rocks (or cairns) must be placed above the grave. Today, the terms Headstone, Grave Marker, and Tombstone are largely...
Department of Gastroenterology, Infectious Diseases, and Rheumatology, Campus Benjamin Franklin, Charité-University Medicine Berlin, 13125 Berlin, Germany 8 Department of Immunology, The Walter and Eliza Hall Institute, Parkville, VIC 3052, Australia ...