Patreon: https://www.patreon.com/join/mhv The recruitment process (probatio) in the Imperial Roman Army was a delicate process. In it is determined if the potential soldier was fit for duty, this required that he was of proper age, mental and physical fitness. Furthermore, you needed to be free-born and if he wanted to join the Legions or even the Praetorians he also needed the Roman Citizenship. *Sources* Davies, Roy W.: Service in the Roman Army Le Bohec, Yann: The Imperial Roman Army Webster, Graham: The Roman Imperial Army of the First and Second Centuries A.D Phang, Sara Elise: Military Documents, Languages, and Literacy; Wesch-Klein, Gabriele: Recruits and Veterans; both in Erdkamp: A Companion to the Roman Army The Military Institutions of the Romans (De Re Militari) By Flavius Vegetius Renatus-Translated from the Latin by Lieutenant John Clarke http://www.digitalattic.org/home/war/vegetius/ https://en.wikipedia.org/wiki/Ancient_Roman_units_of_measurement http://www.convertunits.com/from/meters/to/feet+%5BRome%5D