...A couple of years ago while hunched over her microscope at the University of Haifa, graduate student Rikva Chasan began to notice on the inside rims of countless stone bowls a plethora of previously undocumented, methodically incised small triangles.Chasan is working as part of a multi-year international interdisciplinary project conducted by the university’s laboratory for ground stone tools research that is tracking the provenance of these basalt vessels across the ancient Levant in order to show socioeconomic changes in the Chalcolithic period, circa 4,500 BCE – 3,900 BCE...Chasan postulates that the clearly coordinated decorations depict the start of a crafts...