Timeline of Major Astronomy Developments

Page-1 Rectangle.67 Rectangle.5 Rectangle Rectangle.2 Sheet.3 1000 BC 1000 BC Rectangle.4 Sheet.6 600 BC 600 BC Sheet.7 100 BC 100 BC Sheet.8 500 AD 500 AD Sheet.9 1000 AD 1000 AD Sheet.11 1400 AD 1400 AD Sheet.12 1900 AD 1900 AD Rectangle.14 Greek Empire Greek Empire Rectangle.15 Islam Islam Rectangle.16 Rectangle.18 Eastern Roman (Byzantine) Empire Eastern Roman (Byzantine) Empire Rectangle.19 Christian “West” Christian “West” Rectangle.13 Secular “West” Secular “West” Rectangle.22 Roman Empire Roman Empire Rectangle.23 Rectangle.17 Rectangle.24 Early Mesopotamia Early Mesopotamia Sheet.25 Sheet.26 Earliest surviving astronomical observations Earliest surviving astronomical observations Sheet.27 900 BC – Babylonians, near modern Baghdad 900 BC – Babylonians, near modern Baghdad Sheet.28 Sheet.29 Earth is a sphere Earth is a sphere Sheet.30 500 BC – Pythagoreans, Greece 500 BC – Pythagoreans, Greece Sheet.31 Sheet.32 Mathematical view of “the Cosmos” Mathematical view of “the Cosmos” Sheet.33 ~370 BC – Plato, Athens ~370 BC – Plato, Athens Sheet.34 Sheet.35 Cosmos as Earth-centered spheres Cosmos as Earth- centered spheres Sheet.36 ~350 BC – Aristotle, Athens ~350 BC – Aristotle, Athens Sheet.37 Sheet.38 Sheet.39 Earth moves off-center Earth moves off-center Sheet.40 ~150 BC – Ptolemy, Alexandria (Egypt) ~150 BC – Ptolemy, Alexandria (Egypt) Sheet.41 Sheet.42 Greek writings arrive in Europe via Moorish Spain Greek writings arrive in Europe via Moorish Spain Sheet.43 ~1170 AD – France ~1170 AD – France Sheet.44 Sheet.45 Aristotle reconciled with Christian theology Aristotle reconciled with Christian theology Sheet.46 ~1270 AD – Thomas Aquinas, Paris ~1270 AD – Thomas Aquinas, Paris Sheet.48 Sun-centered spherical cosmos Sun-centered spherical cosmos Sheet.49 1543 – Copernicus, Prussia (Germany) 1543 – Copernicus, Prussia (Germany) Sheet.50 Sheet.52 1575-1597 – Tycho Brahe, Denmark 1575-1597 – Tycho Brahe, Denmark Sheet.21 Eliptical orbits Eliptical orbits Sheet.53 1620 – Kepler, Germany 1620 – Kepler, Germany Sheet.20 Sheet.54 Sheet.55 Sheet.56 Sheet.57 Telescopic observations Telescopic observations Sheet.58 Sheet.59 1632 – Galileo, Italy 1632 – Galileo, Italy Sheet.60 Sheet.111 Gravity, The Calculus and “the system of the world” Gravity, The Calculus and “the system of the world” Sheet.112 1687 – Newton, England 1687 – Newton, England Sheet.113 Sheet.114 Sheet.115 Sheet.51 Hyper-accurate celestial observation Hyper-accurate celestial observation Sheet.61 Sheet.62 Relativity Relativity Sheet.63 1906 – Albert Einstein, Germany 1906 – Albert Einstein, Germany Sheet.64 Sheet.65 Sheet.10 Sheet.47 Sheet.66
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