What humanoid machine did Leonardo da Vinci design for a 1495 Milanese court pageant?

Leonardo da Vinci designed a mechanical knight for a Milanese court pageant around 1495.

The machine was created for festivities organized by Ludovico Sforza, Leonardo’s patron in Milan. Drawings show an armored figure capable of making humanlike movements, including sitting, standing, and moving its arms through a system of cables and pulleys.

No original machine survives, and historical records do not provide a complete operating description. In the 20th and 21st centuries, researchers reconstructed versions from Leonardo’s sketches and found that the design could plausibly work.

The mechanical knight is often called Leonardo’s robot, but it was not an electronic robot. It was a mechanical automaton powered by levers, gears, and cords, centuries before modern robotics.