DCCCLXV

DCCCLXV is a Roman numeral that represents the number 865 in Arabic numerals. The symbol is composed of the letters D, C, L, X, and V, which correspond to the values 500, 100, 50, 10, and 5 respectively. In the Roman system the numeral is constructed by adding the values from left to right, so D (500) plus CCC (300) plus L (50) plus X (10) plus V (5) equals 865.

The number 865 appears primarily in historical contexts that use Roman numerals, most commonly to enumerate years in the Common Era. For example, in medieval annals, the year 865 is recorded as DCCCLXV. This was a period marked by Viking incursions into the British Isles, the reign of Alfred the Great in England, and notable events such as the establishment of the Kingdom of Wessex's defenses. In some European inscriptions, the date DCCCLXV is found on ecclesiastical artifacts, commemorative plaques, and legal documents.

In addition to year designations, Roman numerals like DCCCLXV have been used to number monarchs, volumes, or chapters in scholarly works. The continued use of DCCCLXV in academic and historical texts preserves the traditional system of Roman numerals for readers who study medieval chronology and manuscript culture.