CCCXIII
CCCXIII is the Roman numeral representation of the number 313. Roman numerals are a numeral system originating from ancient Rome, using combinations of letters from the Latin alphabet to signify values. The numeral CCCXIII is constructed by combining the symbols C (100), X (10), and I (1), following the rules of Roman numeral composition. The numeral CCCXIII is typically used to denote the year 313 in historical contexts, which is significant as it marks the year when the Edict of Milan was issued by the Roman Emperor Constantine, granting religious tolerance to all citizens of the Roman Empire. This edict is often considered a pivotal moment in the history of Christianity, as it led to the end of the Diocletianic Persecution and the beginning of the Christian era in the Western Roman Empire. The numeral CCCXIII is also used in various other contexts, such as in the naming of centuries, decades, and years in historical and chronological studies.