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www.livescience.com... These 20 men, who died in A.D. 256, may be the first victims of chemical warfare to leave any archeological evidence of their passing, according to a new investigation. The case is a cold one, with little physical evidence left behind beyond drawings and archaeological excavation notes from the 1930s. But a new analysis of those materials published in January in the American Journal of Archaeology finds that the soldiers likely did not die by the sword as the original excavator believed. Instead, they were gassed.
www.sciencedaily.com...Diagram showing the Sasanian Persian mine designed to collapse Dura’s city wall and adjacent tower, the Roman countermine intended to stop them, and the probable location of the inferred Persian smoke-generator thought to have filled the Roman gallery with deadly fumes. The Persians may have used bellows, but a natural chimney effect may also have helped generate the poisonous cloud. (Credit: Image copyright Simon James)