Kepler played a key role in the scientific revolution that occurred in the 17th century, contributing a number of scientific breakthroughs including his famous laws of planetary motion. Kepler was able to make so significant a contribution to astronomy and physics.
Johannes Kepler was born about 1 PM on December 27, 1571, in Weil der Stadt, Württemberg, in the Holy Roman Empire of German Nationality. He was a sickly child and his parents were poor. But his evident intelligence earned him a scholarship to the university of Tubingen to study for the Lutheran ministry. There he was introduced to the ideas of Copernicus and delighted in them. In 1596, while a mathematics teacher in Graz, he wrote the first outspoken defense of the Copernican system, the Mysterium Cosmographicum.