800th anniversary vs eight hundredth anniversary

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Senior Member
Malaysia English
My daughter asked me whether both are correct;

800th anniversary

eight hundredth anniversary

While I think both are correct, the secondary one looks a bit odd.

Am I correct to say that both are OK?

  • Cenzontle

    Senior Member
    English, U.S.
    Both are okay. The Google Ngram Viewer shows that "800th" is more frequent in published books.
    (Meanwhile, for smaller numbers, such as "nineteenth", the spelled-out form is more frequent, according to the Viewer.)


    Senior Member
    USA, English
    If it is at the beginning of a sentence you have to write "Eight hundredth anniversary". It is optional in other places but I think I would spell it out regardless.

    That's a long time to be married.:D
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