What early robot did Leonardo da Vinci design in armor for a Milanese court spectacle?

Leonardo da Vinci designed an early humanoid automaton known as Leonardo’s robot.

Leonardo created the design in 1495, apparently for a pageant or court spectacle in Milan. The machine wore medieval-style armor and was built to sit, stand, raise its arms, and move its head and jaw through an internal system of gears, cables, and pulleys.

The original machine has not survived, and there is no complete contemporary record proving exactly how it operated. In the 21st century, researchers reconstructed the design from Leonardo’s drawings, demonstrating that the mechanism could perform several of the proposed movements.

Calling it a robot is convenient but historically modern. Leonardo’s machine was an automaton: a programmed mechanical figure, not an electronic robot with sensors or artificial intelligence. Its importance lies in the sophisticated human movement encoded in Renaissance mechanical parts.