What aspect of a Roman soldier's duty cemented the link between the *salarium* and guaranteed periodic payment?
Answer
His duty roster was fixed regardless of daily output fluctuations.
The soldier’s *salarium* was fixed because his duty roster was fixed, meaning the payment was guaranteed irrespective of whether he spent that day drilling or on garrison duty.

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From which Latin term does the modern word *salary* originate?What crucial function did salt serve that made its allowance necessary for Roman soldiers?How was the *salarium* generally provided to Roman soldiers?If the *salarium* was paid in coin rather than the substance itself, what risk did the soldier assume?How does modern compensation typically distinguish salary from wages regarding measurement?What aspect of a Roman soldier's duty cemented the link between the *salarium* and guaranteed periodic payment?Which contemporary allocation mirrors the *salarium*'s core function of provisioning for optimal role performance?Why did the common memory fixate on salt, even if the payment was made in coin?Which entity is described as having codified the idea that consistent service demands a consistent monetary allowance?What connotation does the term "wage earner" often carry compared to "salary earner" in modern classification?