10 May Johannes Kepler
Dead: 15 November 1630
He was a German astronomer, mathematician, and astrologer.
He is a key figure in the 17th-century scientific revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonices Mundi, and Epitome Astronomiae Copernicanae.
These works also provided one of the foundations for Newton's theory of universal gravitation.