List of siege engines

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This is a list of siege engines invented through history. A siege engine is a weapon used to circumvent or destroy fortifications such as defensive walls, castles, bunkers and fortified gateways. Petrary is the generic term for medieval stone throwing siege engines.

## By age, oldest to newest

Name  | Image  | Date  | Location  | Notes

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Siege tower  | 120px  | 9th Century BC  | Assyria | A giant mobile tower, often constructed at location.
Battering ram  | 120px  | 9th Century BC  | Assyria | First siege engine recorded to be used, soon adopted by Sparta.[1]
Catapult | 120px  | 500 BC  | Greece
Lithobolos  | 120px  | 5th Century BC  | Magadha  | Siege engines that propel a stone along a flat track with two rigid bow arms powered by torsion. Invented by the Kingdom of Magadha.
Siege ladder | 120px  | 6th Century BC  | China  | Consists of attacking soldiers advancing to the base of a wall, setting ladders, and climbing to engage the defending forces.
Assault cover | 120px  |  | China  | Protective covers were used in sieges. The most typical were mobile screens and assault wagons. More complex contraptions such as plaited galleries were used for mining and filling in moats.
Watchtower cart | 120px  |  | China  | Static observation towers such as the nest and watchtower carts were used to see into the city. Static towers were also used in close proximity to enemy walls to rain down projectiles on the defenders.
Ballista | 120px  | 400 BC  | Syracuse, Sicily  | A very large and powerful crossbow. Could be mounted on carts. Similar weapons mounted on elephants were used by the Khmer Empire.[2]
Onager  | 120px  | 353 BC  | Rome | The Onager was a Roman torsion powered siege engine. It is commonly depicted as a catapult with a bowl, bucket, or sling at the end of its throwing arm.
Trebuchet | 120px  | 4th Century BC  | China  | Similar to the catapult, but uses a swinging arm to launch projectiles. It is usually considered to be stronger than the catapult.[3]
Oxybeles  | 120px  | 375 BC  | Greece  | An oversized gastraphetes, a composite bow placed on a stand with a stock and a trigger.
Helepolis  | 120px  | 305 BC  | Rhodes  | Greek siege tower first used in Rhodes.[4]
Polybolos | 120px  | 289 BC  | Greece  | A siege engine with torsion mechanism, drawing its power from twisted sinew-bundles.
Sambuca  | 120px  | 213 BC  | Sicily  | Roman seaborne siege engine build on two ships.
Siege hook | 120px  | 189 BC  | Rome | A siege hook is a weapon used to pull stones from a wall during a siege. The method used was to penetrate the protective wall with the hook and then retract it, pulling away some of the wall with it.
Scorpio  | 120px  | 52 BC  | Rome | Similar to the ballista, but smaller. Was sometimes mounted on a mule-drawn cart.[5]
Harpax  | 120px  | 36 BC  | Rome | A catapult-shot grapnel created by Marcus Vipsanius Agrippa for use against Sextus Pompey during the naval battles of the Sicilian Revolt.
Carroballista  | 120px  | 101 AD  | Rome | A handheld siege engine which shot bolts that were smaller than those in other forms of ballistae and generally made of metal.
Catapulta  |  |  | Rome | A Roman siege engine for throwing arrows and javelins. The name comes from the Greek katapeltes because it could pierce or 'go through' (kata) shields (peltas). The catapulta was made of wood and were placed on stands.
Mangonel  | 120px  | 6th Century AD  | China  | A type of trebuchet which uses traction.
Springald  | 120px  | 11th century  | Byzantium  | An inward shooting piece of siege equipment.[6]
Artillery | 120px  | First seen in 14th century, only called artillery around the 15th and 16th century [7] | China  | After the invention of gunpowder in China, the ability to create firearms and siege artillery was open, siege technology advanced from here but, under the artillery category. There is fewer use for this kind of technology today after the invention of rockets and high grade explosives.[8]

## References

1. ↑ "The Battering Ram - lordsandladies". http://www.lordsandladies.org/the-battering-ram.htm. Retrieved 24 May 2017.
2. ↑ "Ballista - lordsandladies". http://www.lordsandladies.org/ballista.htm. Retrieved 24 May 2017.
3. ↑ "Trebuchet - lordsandladies". http://www.lordsandladies.org/trebuchet.htm. Retrieved 24 May 2017.
4. ↑ Article by James Yates, M.A., F.R.S. (6 August 2012). "Helepolis - A Dictionary of Greek and Roman Antiquities, John Murray, London, 1875". https://penelope.uchicago.edu/Thayer/E/Roman/Texts/secondary/SMIGRA*/Helepolis.html. Retrieved 25 May 2017.
5. ↑ Vegetius, De re militari, II, 25.
6. ↑ Nicolle, pp. 173–174, the espringal is depicted, in the form of a fairly detailed diagram, in an 11th-century Byzantine manuscript
7. ↑ Andrew Knighton (25 November 2015). "12 Key Moments in the History of Artillery". https://www.warhistoryonline.com/war-articles/12-key-moments-history-artillery.html. Retrieved 21 October 2017.
8. ↑ Ian Vernon Hogg (28 December 2011). "Artillery". https://www.britannica.com/technology/artillery. Retrieved 21 October 2017.

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