The first person to observe this was Galileo who turned his telecope on Jupiter and discovered four moons going round it. That raised suspicions that other things might also not orbit the Earth, but proof did not come until many decades later after Newton's discoveries.
he discovered that the earth revolved around the sun (heliocentricity) and at that time everyone believed that the sun/planets revolved around the earth (geocentricity)
Copernicus and Galileo discovered the earth revolves around the sun. Any number of people may have sworn to this.
Before the Renaissance, people believed the planets and the sun revolved around the Earth. During the Renaissance, Copernicus discovered and that the Earth and the planets revolved around the sun.
He discovered that the planets revolved around the sun instead of the planets & the sun revolving around Earth.
Earth has revolved around the sun.
Galileo discovered, in his observations of the different phases of Venus, that Venus and the Earth were revolving around the Sun. This was contrary to the misconception at the time that everything revolved around the Earth.
Both Nicolaus Copernicus and Galileo Galilei said that the Earth revolved around the Sun. Many from their time believed the Sun revolved around the Earth.
He found out about the planets and how the earth and moon revolved.
everything revolved around the earth.
Galileo thought planets revolved around the sun because when he observed Jupiter, he noticed that its moons revolved around Jupiter and not earth. So everything else led up to that the Earth revolved around the sun.
It is widely believe in western culture that Copernicus discovered that the Earth revolved around the sun in 1514, however, there is evidence, though no hard facts, to suggest that astronomers as far back as ancient Greece believed in a heliocentric model of our solar system.
Galileo Galilei.