Ballistarius (plural ballistarii) were infantrymen, serving as artillerymen of the Roman army who handled ballistae.[1] They were classed as immunes, exempt from fatigue duty of entrenching or building.[1]

Notes

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  1. ^ a b Zăgreanu, Radu (2013). "Proiectile de piatră din castrul roman de la Arcobadara". Revista Bistriței. Editura Accent. p. 9. Retrieved April 10, 2014.

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