2023-04-25 22:46:59
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British archaeologists used geophysical methods to discover a Roman fortification that had left no trace on the surface, but was mentioned in documentary records from 1707.
The remains of its foundations were found underground in a field near a school in the Scottish town of Carleith Farm, according to a statement from the Scottish authorities.
Previous excavations carried out in the area in the 1970s and 1980s were unsuccessful, but thanks to new gradiometry technologies the team of archaeologists and surveyors managed to locate the structure.
Gradiometry is a geophysical surveying technique that allows one to look below the ground without having to dig. It consists of measuring small changes in the Earth’s magnetic field to detect archaeological features that would otherwise be invisible from the surface.
The fort consisted of two small wooden buildings, surrounded by a stone and grass wall up to two meters high. The fortification incorporated two wooden towers over the gates on opposite sides: one in the north to let people, animals and carts pass through the wall, and another in the south.
The relatively small fortification was one of 41 defensive structures that formed part of the Antonine Wall, a defensive line that stretched for miles across Scotland.
The Roman Emperor Antoninus Pius ordered the construction of the wall in AD 142. C. in an attempt to overcome his predecessor Hadrian, who years before built a fortification known as Hadrian’s Wall regarding 160 km to the south, collects the Live Science portal.
But his drive to conquer the entire island ultimately failed, partly due to the hostility of the native peoples in the area. After 20 years of trying to hold out in their new line, the Romans abandoned the Antonine Wall in AD 162. C. and withdrew to Hadrian’s Wall.
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