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The way we write out Roman numerals today differs in many respects to how the ancient Romans actually did themselves and their rules were 4 times for I, only once for V, 4 times for X, only once for L, 4 times for C, only once for D and so the pattern continues.

The reason being: IIII = 4 but IIIII = V = 5 and V+V = X =10

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11y ago

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