From the Dead Sea Scrolls to the Terracotta Army, ancient artifacts have long fascinated the modern world. However, the importance of some discoveries is not always immediately understood. This was the case in 1901 when sponge divers retrieved a lump of corroded bronze from a shipwreck at the bottom of the Mediterranean Sea near the Greek island of Antikythera, an island north of Crete. Little did the divers know they had found the oldest known analog computer in the world, an astonishing device that once simulated the motions of the stars and planets as they were understood by ancient Greek astronomers. Its remains now consist of 82 fragments, many of them containing gears and plates engraved with Greek words, that scientists and scholars have pieced back together through painstaking inspection and deduction, aided by radiographic tools and surface imaging.
The Antikythera Mechanism (ca. 140–80 BC) is an analog computer that emerged from a sunken ship near the Greek island of Antikythera in 1901. The device, with 29 (other sources speak of 37) corrosion-affected bronze gears, is on display in the National Archaeological Museum of Athens and turned out to be used to perform complicated astronomical time calculations, such as calculating solar eclipses. In 2008, it was discovered that it could also display the calendar of cultural events (the Olympic Games and the Games of Naa in Dodona). [1][2]

Initially they thought that it could be used for navigation as ita lso shows the moon cyclus…

According to the December 2009 issue of Scientific American, four games are mentioned:
• Isthmian Games (Corinth)
• Pythian Games (Delphi)
• Games of Naa (Dodona)
• Olympic Games (Olympia)