The Heliocentric System.
m.i.
The heliocentric model proposed by Nicolaus Copernicus contradicted Ptolemy's geocentric model. Copernicus suggested that the Sun, rather than the Earth, was at the center of the solar system.
Copernicus.
Copernicus.
Nicholas Copernicus.
Nicholas Copernicus did
Nicholas Copernicus did
Galileo Galilei :)
Nicholas Copernicus did
galilea some old dude
Nicholas Copernicus and Galileo
Copernicus and Galileo were two major figures whose ideas contradicted Ptolemy's geocentric model. Copernicus proposed a heliocentric model with the Sun at the center of the solar system, while Galileo used observations through a telescope to support this view and challenge Ptolemaic beliefs.
No one because no one was alive then