Where did the practice of using apostrophes for possessive nouns but not pronouns originate? For example, possessive nouns (both proper and common) are written with a apostrophe before the final s: ...
I was explaining it's vs. its to someone the other day, and I said "None of the pronouns (his, hers, theirs, yours, its, whose, ...) has an apostrophe." Later I got to wondering whether that was ...
If apostrophe + s is the acceptable way of denoting a genitive in English, is it possible that possessive pronouns, such as hers, ours and yours, started life as possessive adjectives with apostrophe ...