[1] Dismissal from Roman military service
The word missio was a technical term for dismissal from Roman military service. During the Principate, honesta missio usually followed after completion of the normal period of service (20 years in the legions, 16 in the praetoriae cohortes, 25 in the Auxilia and the equites singulares Augusti, 26, later 28, years in the navy), often even several years later. Invalids received early missio causaria. Sever…