1
vote
1answer
192 views

When were st, nd, rd, and th, first used [closed]

When were numeric contractions for ordinals first used, as in 1st, 2nd, 3rd, 6th instead of first, second, third, sixth?
4
votes
2answers
644 views

“20th century” vs. “20ᵗʰ century” [closed]

When writing twentieth century using an ordinal numeral, should the th part be in superscript? 20th century 20th century