Geocentric model work, the "Almagest", was the culmination of centuries of work by Hellenic, Hellenistic and Babylonian astronomers. For over a millennium European and Islamic astronomers assumed it was the correct cosmological model. Because of its influence, people sometimes wrongly think the Ptolemaic system is identical with the geocentric model. Ptolemy argued that the Earth was a sphere in the center of the universe, from the simple observation that half the stars were above the horizon and half were below the horizon at any time (stars on rotating stellar sphere), and the assumption that the stars were all at some modest distance
Rock carvings in Central Norway horse pulling the sun across the sky during the day, and the boat bringing it back through the underworld during night-time. The hunter's rock carvings are often found in places with striking and highly visible natural features, such as below steep cliffs, by waterfalls etc. This was part of what led to the original hunting-magic-interpretation: supposedly the carvings were made in places where animals could easily be hunted. In Central Norway, these sites have a markedly different distribution than the Bronze Age carvings. Sites are found one by one, often in isolated places. The Bronze Age-sites, on the other hand,