The shape of Latin S arises from Greek Σ by dropping 1 out on the four strokes of that letter. The (angular) S-shape composed of three strokes existed as being a variant in the four-stroke letter Σ currently inside the epigraphy of Western Greek alphabets, plus the 3 and four https://s10875.sharebyblog.com/31198740/s-no-further-a-mystery