MDCCXVII

MDCCXVII is the Roman numeral for the year 1717. In this form, M stands for 1000, D for 500, C for 100, X for 10, V for 5, and I for 1, with the values added together to give 1717. The sequence MDCCXVII uses additive notation, without subtractive pairs such as IV or IX.

As a calendar year, MDCCXVII falls in the early 18th century, a period associated with the Baroque cultural milieu and the beginnings of the Enlightenment in Europe. One notable historical development tied to this year is the founding of a major fraternal organization: on June 24, 1717, four London lodges gathered at the Goose and Gridiron Tavern to form the Grand Lodge of England, widely regarded as the first grand lodge of Freemasonry and a foundational event in its modern organizational structure.

In historical records, MDCCXVII is used to date inscriptions, documents, and chronicles from the period. The year marks a point in the broader timeline of European political and cultural activity, as various states and colonies navigated ongoing dynastic, religious, and geopolitical issues of the era. References to MDCCXVII thus commonly appear in studies of 18th‑century history, archaeology, and philology, where precise dating helps situate events within the broader sequence of early modern history.