Galileo Galilei

  • Feb 15, 1564

    Birth of Galileo Galilei

  • Period: Jan 1, 1581 to

    Studies at the University of Pisa

  • Galileo read a book by German astronomer Johannes Kepler

  • Galileo's first known astronomical observation occurred, when a supernova was visible in the sky

  • Galileo dies in Florence, Italy

  • By December 1609, he had seen for the first time the four largest moons orbiting around Jupiter, which contradicted Ptolemaic theory that earth is the center of all orbiting bodies