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.
Legal Definition of capitalization. 1  1 : the act or process of capitalizing capitalization of earnings. 2  2 : a sum resulting from a process of capitalizing; especially : paid-in capital at capital inadequate capitalization.