MCMXXXIX

MCMXXXIX is the Roman numeral representation of the number 1939. Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are expressed in Roman numerals using combinations of letters from the Latin alphabet. The Roman numeral system uses seven symbols, each with a fixed integer value. These symbols are I (1), V (5), X (10), L (50), C (100), D (500), and M (1,000). To form a number, the symbols are combined according to specific rules. The symbol placed after another of equal or greater value adds its value, while a symbol placed before another of greater value subtracts its value. For example, the numeral MCMXXXIX is composed of M (1000), CM (900), XXX (30), and IX (9), which sum up to 1939. The year 1939 holds historical significance as it was the year World War II began in Europe when Germany invaded Poland on September 1st.