Leonardo da Vinci designed a human-like machine known as the mechanical knight. He probably created it for a pageant or ceremony at the Milan court of Ludovico Sforza around 1495.
The machine was based on an armored medieval knight and contained a system of pulleys, cables, gears, and levers. Reconstructions indicate that it could sit, stand, raise its arms, and move its head and jaw. Its movements were controlled mechanically rather than by electricity or computer software.
The original device disappeared, and no contemporary description proves every movement it performed. In 2002, roboticist Mark Rosheim built a reconstruction based on Leonardo’s surviving anatomical and mechanical sketches. The replica showed that the design could work with Renaissance-style mechanisms.
The machine is often called Leonardo’s robot, but that modern word can mislead. It was an automaton: a self-moving mechanical figure programmed by physical linkages. It had no artificial intelligence, sensors, or independent reasoning. Its importance is that Leonardo applied engineering principles to imitate coordinated human movement.