Question

name the scientist who first declared that the earth revolves around the sun

Answer 1

Copernicus declared that the Earth rotates around the Sun. But it is generally said that an ancient Greek astronomer Aristarchus of Samos was the first person to propose a Sun-centred hypothesis of the universe.

Answer 2

Greek astronomer Aristarchus of Samos was the first person to declare that earth revolves around the sun