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When were numeric contractions for ordinals first used, as in 1st, 2nd, 3rd, 6th instead of first, second, third, sixth? Aug 23, 2014 · Our numbers have a specific two-letter combination that tells us how the number sounds. For example 9th 3rd 301st What do we call these special sounds? When is it proper to use 1st instead of first? For example, is the correct sentence acceptable? Can you give more detail about why you 1st got involved? I tried finding some authoritative source.

I'm wondering which is the right usage between "the 1st" and "1st" in these sentences: a) The United States ranked 1st in Bloomberg's Global Innovation Index. b) The United States ranked the 1st.