CDLXI is a Roman numeral that represents the number 461. Roman numerals are a numeral system originating from ancient Rome, using combinations of letters from the Latin alphabet. In this system, "C" stands for 100, "D" for 500, "L" for 50, and "X" for 10. Therefore, CDLXI can be broken down as 500 (D) + 100 (C) + 50 (L) + 10 (X) + 1 (I). This numeral can be found in various contexts, such as in historical documents, clock faces, and the naming of monarchs or popes. Understanding Roman numerals, including CDLXI, is useful for interpreting dates, events, and other significant information from history, such as the reign of Roman emperors or the numbering of chapters in books.