Battering ram

The earliest depiction of a possible battering ram is from the tomb of the 11th Dynasty noble Khety, where a pair of soldiers advance towards a fortress under the protection of a mobile roofed structure, carrying a long pole that may represent a simple battering ram.[1]

During the Iron Age, in the ancient Middle East and Mediterranean, the battering ram's log was slung from a wheeled frame by ropes or chains so that it could be made more massive and be more easily bashed against its target. Frequently, the ram's point would be reinforced with a metal head or cap while vulnerable parts of the shaft were bound with strengthening metal bands. Vitruvius details in his text De architectura that Ceras the Carthaginian was the first to make a ram with a wooden base with wheels and a wooden superstructure, with the ram hung within. This structure moved so slowly, however, that he called it the testudo (Latin for "tortoise").[2]

Another type of ram was one that maintained the normal shape and structure, but the support beams were instead made of saplings that were lashed together. The frame was then covered in hides as normal to defend from fire. The only solid beam present was the ram that was hung from the frame. The frame itself was so light that it could be carried on the shoulders of the men transporting the ram, and the same men could beat the ram against the wall when they reached it.[3]

Many battering rams had curved or slanted wooden roofs and side-screens, covered in protective materials, usually fresh wet hides. These canopies reduced the risk of the ram being set on fire, and protected the operators of the ram from arrow and spear volleys launched from above.

An image of an Assyrian battering ram depicts how sophisticated attacking and defensive practices had become by the 9th century BC. The defenders of a town wall are trying to set the ram alight with torches and have also put a chain under it. The attackers are trying to pull on the chain to free the ram, while the aforementioned wet hides on the canopy provide protection against the flames.

By the time the Kushites made their incursions into Egypt, around 715 BC, walls, siege tactics and equipment had undergone many changes. Early shelters protecting sappers armed with poles trying to breach mudbrick ramparts gave way to battering rams.[4]

The first confirmed use of rams in the Occident happened from 503 to 502 BC when Opiter Verginius became consul of the Romans during the fight against Aurunci people:

The following consuls, Opiter Virginius and Sp. Cassius, first endeavored to take Pometia by storm, and afterwards by raising battering rams (vineae) and other works.

— Livy, Ab urbe condita, History of Rome, Book II, Chapter 17

The second known use was in 427 BC, when the Spartans besieged Plataea.[5] The first use of rams within the Mediterranean Basin, featuring in this case the simultaneous employment of siege towers to shelter the rammers from attack, occurred on the island of Sicily in 409 BC, at the Selinus siege.[6]

Defenders manning castles, forts or bastions would sometimes try to foil battering rams by dropping obstacles in front of the ram, such as a large sack of sawdust, just before the ram's head struck a wall or gate, or by using grappling hooks to immobilize the ram's log. Alternatively, the ram could be set ablaze, doused in fire-heated sand, pounded by boulders dropped from battlements or invested by a rapid sally of troops.

Some battering rams were not slung from ropes or chains, but were instead supported by rollers. This allowed the ram to achieve a greater speed before striking its target, making it more destructive. Such a ram, as used by Alexander the Great, is described by Vitruvius.

Alternatives to the battering ram included the drill, the sapper's mouse, the pick, the siege hook, and the hunting ram. These devices were smaller than a ram and could be used in confined spaces.

Battering rams had an important effect on the evolution of defensive walls, which were constructed ever more ingeniously in a bid to nullify the effects of siege engines. Historical instances of the usage of battering rams in sieges of major cities include:

• The destruction of Jerusalem by the Romans
• The Crusades
• The Sack of Rome (410)
• The various sieges of Constantinople

There is a popular myth in Gloucester, England that the well known children's rhyme, Humpty Dumpty, is about a battering ram used in the siege of Gloucester in 1643, during the Civil War. However, the story is almost certainly untrue; during the siege, which lasted only one month, no battering rams were used, although many cannons were. The idea seems to have originated in a spoof history essay by Professor David Daube written for The Oxford Magazine in 1956, which was widely believed despite obvious improbabilities (e.g., planning to cross the River Severn by running the ram down a hill at speed, although the river is about 30 m (100 feet) wide at this point).

Pliny the Elder in his Naturalis historia describes a battering ram used in mining, where hard rock needed to be broken down to release the ore. The pole possessed a metal tip weighing 150 pounds, so the whole device will have weighed at least twice as much in order to preserve its balance. Whether or not it was supported by being suspended with ropes from a frame remains unknown, but very likely given its total weight. Such devices were used during coal mining in the 19th century in Great Britain before the widespread use of explosives, which were expensive and dangerous to use in practice.

A modern battering ram

Battering rams still have a use in modern times. Police forces often employ small, one-man or two-man metal rams, known as enforcers, for forcing open locked portals or effecting a door breaching. Modern battering rams sometimes incorporate a cylinder, along the length of which a piston fires automatically upon striking a hard object, thus enhancing the momentum of the impact significantly.[7]

• Aerial ramming - In military aviation, deliberately causing a mid-air collision to attack an opposing aircraft
• Impact (mechanics)
• List of siege engines
• Naval ram - A battering ram-like device fitted to naval vessels, used to attack, disable and/or sink enemy ships
• Ramming – various military and civil tactics
• Ram-raiding – using a vehicle as an improvised battering ram to gain access to a building for the purpose of breaking and entering

Media related to Battering rams at Wikimedia Commons

• "Battering Ram" . The New Student's Reference Work . 1914.