Which Ancient Greek Showed Earth Is Round And Calculated Its Circumference?
Which Ancient Greek Showed Earth Is Round And Calculated Its Circumference? 240 B.C. Eratosthenes How did they measure the circumference of the Earth? Eratosthenes sent a man to Syene from Alexandria on foot to measure the distance between Alexandria and Syene. Thus, Eratosthenes measured the distance between the two cities is 800 km. He multiplied