Leonardo da Vinci designed an organ gun to spray multiple cannonballs in a wide arc.
The weapon used many small gun barrels arranged in parallel rows, giving it an appearance similar to the pipes of a musical organ. A carriage allowed the array to be raised, lowered, and aimed. The intended effect was to fire a broad volley against groups of soldiers rather than rely on a single cannon shot.
Leonardo’s design was not a machine gun in the modern sense. The barrels were meant to fire together or in coordinated volleys, and the weapon still required loading and ignition. The term “organ gun” refers to the barrel arrangement, not to musical performance.
The concept illustrates Leonardo’s interest in increasing battlefield firepower through mechanical organization. It also reflects the rapid development of gunpowder weapons in Renaissance Europe.