the first file of the first (rightmost) cohort. Only eight officers in a fully officered legion outranked the Primus Pilus: the legate (legatus legionis), commanding the legion; the senior tribune (tribunus laticlavius), second-in-command of the legion; the Camp Prefect (praefectus castrorum); and the five other tribunes (tribuni angusticlavii) who served as senior staff officers to the legate. Centurions could be elected, appointed by the Senate, or promoted from the ranks for a variety of reasons. Julius Caesar is said to have promoted his centurions for displays of valour. Historians cite examples of them being the first over the enemy's wall or through the breach. The various centurion grades may be loosely compared to modern junior and middle officer grades. Below the centurions were the optiones, seconds-in-command of centuries. Centurions were held personally responsible for the training and discipline of the legionaries under their command, and they had a reputation for dealing out harsh punishment. Tacitus tells a story in The Annals of a centurion known as "Cedo Alteram", which roughly translates to "Fetch Me Another". "The mutinous soldiers thrust out the tribunes and the camp-prefect; they plundered the baggage of the fugitives, and then killed a centurion, Lucilius, to whom, with soldier's humour, they had given the nickname 'Cedo Alteram', because when he had broken one vine-stick across a soldier's back, he would call in a loud voice for another… and another...and another!" The vine-stick (vitis) was a symbol of the centurion's authority and the implement with which he meted out punishment. Unlike legionaries, centurions carried their swords on their left side as a sign of distinction and carried the pugio (dagger) on the right, as the sidearm. Centurions wore transverse crests on their helmets that would distinguish them from other legionaries. Centurions often had important social status and held powerful positions in society. They seem to have received their status according to their rank. On retirement, they could be eligible for employment as lictors. Seniority Each century had a precedence within the cohort. Centurions' seniority within the cohort and legion depended on the position within the legion of the century they were in charge of, which often took their name from their centurion. Centurions began by leading junior centuries before being promoted to leading a more senior one. Promotion usually came with experience, or at least length of service, but many still never made it as far as leading