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
Populated places in Ukraine localities can refer to two different types of inhabited places: villages and rural settlements. Rural populated places in Ukraine are very underdeveloped and often lack basic types of infrastructure: transportation, utilities and others. Village as a term became systematic for a conventional rural populated place and most numerous out of all terms used for populated places in a country. It is administrated by silrada (a rural council) and is the lowest level and most common form of territorial administration at that level. A rural council may be composed of a single village or group of villages. According to the 2001