Rotation:
* Ancient Greeks: Philosophers like Pythagoras and Aristarchus proposed the idea that the Earth rotates on its axis. They observed the movement of stars in the night sky and reasoned that this was due to Earth's spinning.
* Galileo Galilei (16th-17th century): He observed the phases of Venus, which could only be explained if Venus was orbiting the Sun. This provided further evidence for a heliocentric model, where the Earth revolves around the Sun.
* Foucault's Pendulum (19th century): This experiment, designed by Léon Foucault, provided direct proof of Earth's rotation. The pendulum's plane of oscillation gradually changes, demonstrating the Earth's rotation.
Revolution:
* Ancient Greek astronomers: While they didn't have the correct model, they observed the movement of the planets and proposed various theories about their orbits, including the geocentric model (everything orbits the Earth).
* Nicolaus Copernicus (16th century): He proposed the heliocentric model, where the planets revolve around the Sun. His theory was initially met with resistance but later proved to be accurate.
* Johannes Kepler (17th century): He formulated the Laws of Planetary Motion, which mathematically described the elliptical orbits of the planets around the Sun.
Therefore, it's not a single person who "discovered" rotation and revolution. Rather, it's the culmination of observations, theories, and experiments over centuries that led to our understanding of Earth's movements.
