CMXXIX
CMXXIX is the Roman numeral representation of the number 1929. In Roman numeral notation, C represents 100, M represents 1000, X represents 10, and I represents 1. The numeral is constructed by combining these symbols according to specific rules. The placement of a symbol of lesser value before a symbol of greater value indicates subtraction, while the placement of a symbol of lesser or equal value after a symbol of greater value indicates addition.
In CMXXIX, the C before M (CM) signifies 1000 - 100 = 900. The two X's after the M