Question

When it was proved that Earth is round in shape​

Answer 1

Answer:

In the 3rd century Bc hellenistic astronomy established the roughly spherical shape of the earth

Answer 2

Answer:

3rd Century BC

Explanation:

In 3rd Century BC Hellenistic astronomy established the round spherical shape of the earth as a physical fact and calculate the eart's circumference. This knowledge was gradually adopted through the old world during late antiquity and the middle age.