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Period: Feb 15, 1564 to
Galileo Galilei's Lifespan
Galileo lived from Feburary 15th, 1564 to January 8th, 1642. He lived to the age of 77. -
"The Operations of the Geometrical and Military Compass" Published
1604: Galileo wrote The Operations of the Geometrical and Military Compass, which showed his findings in experiments and his skills in technological applications. Month and day unknown. -
Galileo supports Heliocentric theory
Galileo openly supported the theory the planets revolved around the sun. -
Galileo reinvents the telescope
July 1609: Galileo took a design of a telescope and made it into one of his own. -
Galileo publishes "The Starry Messenger"
Galileo published The Starry Messenger, a small booklet containing more proof that the planets rotated around the sun, as well as the fact that Jupiter has its own moons. -
Sunspots discovered!
Galileo discovered sunspots, and that the sun wasn’t perfect. -
Ban lifted on Heliocentric theory
Years later, the Heliocentric theory was accepted and bans on it were lifted.
