Years and Dating
Years and Dating. Boring, but necessary!. Roman Numerals –counting with letters. I = 1 V= 5 X= 10 L=50 C=100 D=500 M=1000 If a numeral of lesser value is in front of a numeral of greater value, subtract the lesser from the greater. Ex: IX = 9, XL = 40, MCM = 1900.
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