1940 in Roman numerals is MCMXL
The Arabic number 1940 is written as MCMXL in Roman numerals. Below you can see the parts it is built from.
How is {n} written in Roman numerals?
Roman numerals run from the largest value to the smallest: M = 1000, CM = 900, XL = 40. In total MCMXL = 1940. A smaller symbol before a larger one means subtraction (IV = 4, IX = 9, XL = 40, CM = 900). Roman numerals cover numbers 1-3999.