The catapult, as we usually mean it in ancient warfare, first appears in the historical record in the early 4th century BC in the Greek world, around 399–397 BC.

Quick Scoop

  • Ancient Chinese traction catapult-like devices (early trebuchets) existed by the 5th century BC.
  • In India, King Ajatashatru of Magadha reportedly used catapult-style siege machines in the 5th century BC as well.
  • The first clearly documented Greek catapults show up around 399 BC , credited to engineers working for Dionysius I of Syracuse , and they were used at the siege of Motya (397 BC).
  • These early Greek designs then evolved into more powerful stone-throwing artillery over the 4th–3rd centuries BC, later influencing Roman siege engines.

So, when was the catapult “invented”?

Historians usually answer in two ways:

  1. If you mean the first clear Greek mechanical artillery that we call a “catapult”:
    • Around 400 BC (early 4th century BC), with a commonly cited date of 399 BC.
  1. If you include earlier catapult-like siege devices :
    • At least by the 5th century BC in China and India , with traction trebuchets and stone‑throwers in use before the Greek versions.

A simple way to remember it:

Roughly 2,400–2,500 years ago , ancient engineers in Greece (and slightly earlier in Asia) were already hurling stones and bolts with large mechanical launchers.

Information gathered from public forums or data available on the internet and portrayed here.