Drawings on stone slabs

After about 16,000 years ago drawings were often made on the surfaces of stone slabs even where wall space was available inside caves. Their purpose is unknown although in some sites they are numerous. On most, the images are lightly incised sketches that are now hard to see but when originally engraved the fresh lines showed up against the stone surface. Many drawings were superimposed on one other even when empty space was available on the same or other slabs. Perhaps the act of drawing was more important than the appearance of the finished mix of representations possibly made for storytelling, religious devotions or simply to provide information.