Leonardo da Vinci designed a human-shaped machine commonly called the robotic knight.
The design was prepared around 1495, probably for a pageant or court entertainment in Milan. A suit of armor concealed a system of gears, cables, and pulleys connected to a rigid internal frame. Reconstructions indicate that the machine could perform limited human-like movements, such as sitting, standing, and moving its arms.
The invention is often described as a robot, although Leonardo did not use the modern word or intend an autonomous electronic machine. It was a mechanical automaton, powered by physical mechanisms rather than software or electricity. The surviving evidence comes from Leonardo’s notes and sketches, not from a complete original machine.
In the early twenty-first century, researchers reconstructed the design using Leonardo’s drawings and historical interpretation. The robotic knight therefore connects Renaissance theatrical engineering with the later history of automata and robotics.