Population exchange between Greece and Turkey its native Greek-speaking Muslim citizens. By the end of 1922, the vast majority of native Asia Minor Greeks had fled the recent Greek genocide (1914–1922) and Greece's later defeat in the Greco-Turkish War (1919–1922). According to some calculations, during the autumn of 1922, around 900,000 Greeks arrived in Greece. According to Fridtjof Nansen, before the final stage, in 1922, of the 900,000 Greek refugees a third were from Eastern Thrace, with the other two thirds being from Asia Minor. The estimate for the Greeks living within the present day borders of Turkey in 1914 is 2.130 million a figure higher
Ancient Greek astronomy find remarkable information such as that the Earth is round, it has an axis and it moves around it in one day, it has three climate zones and that the Sun magnetizes the Stars and planets. The name "planet" comes from the Greek term πλανήτης ("planētēs"), meaning "wanderer", as ancient astronomers noted how certain lights moved across the sky in relation to the other stars. Five planets can be seen with the naked eye: Mercury, Venus, Mars, Jupiter, and Saturn, the Greek names being Hermes, Aphrodite, Ares, Zeus and Cronus. Sometimes the luminaries, the Sun and Moon, are added to