Upper Trajan's Wall
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The Upper Trajan's Wall is the modern name given to a fortification located in the central area of modern Moldavia. Some scholars consider it to be of Roman origin, while others think it was built in the third/fourth century by the Germanic Greuthungi to defend their borders against the Huns.[1] It may also have been called Greuthungian Wall in later Roman accounts, but this is uncertain owing to a single polysemic manuscript occurrence in the works of Ammianus Marcellinus.[2]