What kind of robot did Leonardo da Vinci design for a Milan court celebration in 1495?

Leonardo da Vinci designed a mechanical knight for a Milan court celebration in 1495.

The automaton was probably created for a pageant organized under the patronage of Ludovico Sforza. Leonardo’s notes and sketches show a knight in armor whose internal mechanism could move its arms, head, and jaw. The machine was operated by cables and a system of pulleys and gears.

It is often called Leonardo’s robot, although the word “robot” did not exist in the fifteenth century. The design was an automaton: a machine that performs preset movements through mechanical mechanisms rather than sensing its environment or making decisions.

A modern reconstruction was built in 2002 by the roboticist Mark Rosheim, who studied Leonardo’s surviving drawings. The reconstruction demonstrated movements consistent with the design. No original mechanical knight has been found, so historians distinguish the documented design from claims about a surviving working machine.