The moon on a sling!

I'm reading Arthur Koestler's The Act of Creation. All about the creative process in the arts and sciences. Along the wayhe emphasises that many scientific advances and even revolutions often have many precursors. He gives a wonderful example of how the Roman historian Plutarch (c. 45 - 125 A.D.) anticipated Newton's 1st law of motion by 1500 years!

Plutarch  -  On the Face in the Disc of the Moon