Galileo Galilei

Galileo Galilei (February 15, 1564-January 8, 1642) was an Italian philosopher, astronomer, and mathematician. He played a significant role during the Renaissance in the scientific revolution that led to the development of the scientific method. He changed natural philosophy by proclaiming that nature could be described using mathematics. His discoveries revolutionized astronomy, but his advocacy of the Copernican heliocentric system eventually caused an Inquisition against him.