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Two basic designs of catapults dating back to Roman times. The Basic design was a frame, on wheels. On this frame was a throwing arm which could hurl large amounts of rocks at a target at decent velocity. This made it good as a siege weapon, and also as an anti-personell device due to the spread of the rocks. The amngonel came first, and was later developed into the Onager, which had a sturdier frame and larger wheels.

Yes, all true, i did, i belive put something into the article about it but it might of been edited out. they cut quite a lot out.
Lord Preston OMFC