Kepler's Laws of Planetary Motion, published in 1609 and 1619:
That is one of Kepler's Laws, stated by Johannes Kepler.
because kepler was smart
According to Kepler's Universe theory, the universe was born in 4977 BC.
Kepler
1609
The person who first stated this was Johannes Kepler.
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
Kepler used Tycho Brahe's data to establish the heliocentric theory of the solar system.
Kepler
because kepler was smart
well this theory was that the sun was a princaple source of motive power in the universe
Johannes Kepler stated that the planets revolve around the sun in an ellipse.