Galileo Galilei

1610

1585

1624

1564

1632

Galileo reportedly makes his famous velocity exper-iment, dropping objects off the leaning tower to disprove Aristotle's theory that heavier objects fall faster than lighter ones

Galileo compleated his 4th year of studies and returns to Florence without any degrees.

1609

Galileo Galilei

Galileo Galilei was born Febuary 15th 1564.

1589

Galileo made his first telescope.

Galileo made improvements to his telescope, which enabled him to observe celestial bodies more distinctly than ever and discovered four moons orbiting Jupiter.

Galileo works on his Dialogue Concern-ing the Two Chief World Systems

The printing of Galileos work on his Dialogue Concerning the Two Chief World Systems has been done. Further distribution of the Dialogo is prohibited by Pope Urban VIII and a special commission is appointed to examine the book.

1633

Galileo leaves Florence on 20 January and, after two weeks quarantine (because of the plague) just outside Rome, he arrives there on 13 February. As a special favor to Grand Duke Ferdinand II de' Medici, the Pope allowes Galileo to stay at the residence of the Tuscan ambassador. Galileo is forbidden social contacts.