MDCCCCXX is the Roman numeral representation for the number 1920. In this numeral, "M" stands for 1000, "D" for 500, "CCCC" for 400 (100 each), and "XX" for 20. When combined, these values sum up to 1920.
MDCCCCXX is the Roman numeral representation for the number 1920. In this notation, M represents 1000, D represents 500, C represents 100 (with four Cs making 400), and XX represents 20. Therefore, when combined, they total 1920.
MDCCCCXX or perhaps MCMXX. I think the first is more authentically Roman, but the second may be more commonly used today, and is shorter.
IV-XVIII-MDCCCCXX You can't repeat a letter more than 3 times in a row with roman numerals, 1500 would be MD 1600 would be MDC 1700 would be MDCC 1800 would be MDCCC With 1900 you can't repeat the C 4 times, you have to minus a hundred (C) from the next thousand (M) by putting a C before the M. So 1900 is MCM and 1920 would be MCMXX (note: the D is 500). Also using Roman numerals, the date would probably be in European format, Ex. day, month, year, So the date would probably be XVIII IV MCMXX.