In 1902 – While going through objects recovered by divers near Antikythera off the coast of Greece, archaeologist Valerois Stais discovered a strange device with gear-wheels inside. The Antikythera mechanism has been puzzling investigators for over a hundred years.
In 1943 – The U.S. Army and the University of Pennsylvania signed a contract to develop ENIAC. It was planned to use vacuum tubes and calculate ballistic firing tables.
In 1954 – The first shovel load of earth was dug on the Meyrin site of the first CERN Laboratory building in Geneva.