Neil deGrasse Tyson @neiltyson
Just an FYI: Roman Numerals have no zero because it was not yet invented, allowing year 2000 to be written efficiently as MM. — PolitiTweet.org
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Mon Aug 22 19:23:01 +0000 2011
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Likely AvailableNeil deGrasse Tyson @neiltyson
Just an FYI: Roman Numerals have no zero because it was not yet invented, allowing year 2000 to be written efficiently as MM. — PolitiTweet.org