The Roman numerals are: I, V, X, L, C, D, and M. These symbols represent 1, 5, 10, 50, 100, 500, and 1000, respectively. Today we use Arabic numerals instead. Roman numerals are still used for writing stylized numbers. You may see Roman numerals used on a building's cornerstone to show when it was built or in the numbering for the Superbowl. More @Wikipedia
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