Archaeologist Veronica Waweru visited the Lewa Wildlife Conservancy in Kenya. While exploring there, Waweru noticed many rows of shallow pits carved into stone. Waweru believed the pits could have been used as game boards to play ancient versions of mancala, a two-person strategy game that is still popular today. Some of the more recent pits were carved on top of older pits. This led Waweru to think that the game was played at the site for a long time.