-
Feb 19, 1473
Copernicus
he was born -
1492
Copernicus
he studies at university of krakow -
1510
Copernicus
he took a position as canon in the cathercral in Frombork -
1514
Copernicus
he wrote "The little commentary" to tell about his heliocentric theory -
1532
Copernicus
he had mostly completed his astronomical manuscript after 16 years -
1541
Copernicus
he agreeded to publish his idea "On the revelutions of celestial spheres" -
May 24, 1543
Copernicus
he died -
Feb 15, 1564
Galileo
he was born -
Galileo
he shares his oppinion of the heliocentric model -
Galileo
he invented a mechanical device for mathematical calculations -
Galileo
he first astronimical obersvation (visible supernova) -
Galileo
he made an instrument 3 times as powerful as the dutch device -
Galileo
he first saw the orbiting moons around jupiter with is newly enhanced telescope -
Galileo
he found that venus circled the sun -
Galileo
he recieved permission from the pope to publish his theory of the tides, after being prohibited -
Galileo
he publishes "Dialogue concerning the two cheif world systems" -
Galileo
he called for trial for defending the heliocentric model -
Galileo
he publishes "Discourses and mathematical demonstrations" -
Galileo
he died