Events
Aristotle escribes the geocentric (Earth-centred) model of the universe.Aristarchus proposes heliocentric model of the universeFerdinand Magellan is the fir european to observe magellanic cloudsPtolemy refines geocentric model of the universeKelper publishes Astronomia NovaNicholas copernicus publishes a paper that presents the helioentric modelIsaac Newton publishes AstronomiaGeorges Lemaitre proposes the Big Bang thoeryEdwin Hubble discovers evidence of an expanding universe, which supports the big band modelFred Hoyle uses the term 'Big Bang' for the first time
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