Sometimes, there is an absolute limit on the number of terms an officeholder can serve, while, in other cases, the restrictions are merely on the number of consecutive terms.
For example, Maxwell's Equations would always be capitalized, while quantum mechanics is usually un-capitalized. I searched half a dozen sites for an answer to this but found no clue about a rule. So go either way that makes you happy, but (most of all) be consistent.
capitalization - an estimation of the value of a business. capitalisation. estimate, estimation - a judgment of the qualities of something or somebody; many factors are involved in any estimate of human life; in my estimation the boy is innocent.