Although graphic elements appear throughout the Upper Palaeolithic and perhaps even as early as the Middle Palaeolithic with the Neanderthals, The Magdalenian is thought to be a time of artistic outpouring, probably connected to a population increase. Various supports were used (shelter and cave walls, boulders, rocks, worked stone, pebbles, stone slabs, adornment, etc.) in connection with both everyday life and more symbolic activities, with the two spheres occasionally overlapping.