Gregorians

Gregorians is a term that can refer to several distinct entities, primarily associated with religious or historical contexts. The most common association is with the Gregorian chant, a form of monophonic, unaccompanied sacred song of the Western Roman Catholic Church. This style of music is named after Pope Gregory I, who reigned from 590 to 604 AD, and is traditionally believed to have been instrumental in its compilation and organization, though its exact origins are complex and debated by musicologists.

Another significant association is with the Gregorian calendar. This is the calendar that is most widely used today. It was introduced by Pope Gregory XIII in 1582 as a reform of the Julian calendar. The Gregorian calendar addresses the inaccuracies of the Julian calendar's leap year system, providing a more precise measure of the tropical year. Its adoption was gradual, with different countries and regions implementing it at various times over the following centuries.

In a more general sense, "Gregorians" might also refer to followers or adherents of specific religious traditions or movements that have been influenced or founded by figures named Gregory. However, without further context, the Gregorian chant and the Gregorian calendar remain the most prominent and widely recognized meanings of the term.