Puppetry is an ancient form of performance. Some historians claim that they predate actors in theatre. There is evidence that they were used in Egypt as early as 2000 BC when string-operated figures of wood were manipulated to act kneading bread and other string-controlled objects. Wire-controlled, articulated puppets made of clay and ivory have been found in Egyptian tombs. Marionette puppetry was used to display rituals and ceremonies using these string-operated figurines back in ancient times and is still used today.