Which of the ancient scientists first suggested that the Earth has the shape of a ball?

In ancient times, scientists were always misled by the question of what form the Earth has, there was a lot of controversy about this and no one could clearly confirm this or that fact. The first person who decided that the Earth was round was Pythagoras. Later, Aristotle was convinced of this when he watched the lunar eclipse, because the shadow from the earth was round. The famous Magellan proved this in practice with his trip around the world. Having gone west, he returned from the east, and this was proof that the Earth has the shape of a ball.