The Royal Game of Ur
Ancient Sumerian gameboard found by archaeologist Leonard Woolley near the ancient city of Ur, 1920. It has been dated to around 2,600 BC - 2,400 BC. While the rules of the game are unknown scholars and board game experts theorize that it was an ancestor of backgammon based on the pieces and arrangement of the board. It is currently on display at the British Museum.
Today the game is known as “The Royal Game of Ur” with a theoretical set of rules created by board game experts. You can purchase your own set here.