Antikythera mechanism, world's oldest computer, followed Greek lunar calendar
When you buy through links on our site , we may earn an affiliate commission . Here ’s how it works . The Antikythera mechanics — an ancient shoebox - sized machine that was used to track the gesture of the sunlight , moon and planets — followed the Grecian lunar calendar , not the solar one used by the Egyptians , as was previously thought , new research reveals ....