In medieval Gaelic and British culture (Ireland, Scotland, Wales, Isle of Man, Brittany and Cornwall) a bard was a professional poet, employed by a patron, such as a monarch or nobleman, to commemorate the patron's ancestors and to praise the patron's own activities.
Originally a specific class of poet, contrasting with another class known as fili in Ireland and Highland Scotland, the term "bard", with the decline of living bardic tradition in the modern period, acquired generic meanings of an epic author/singer/narrator, comparable with the terms in other cultures: minstrel, skald/scop, rhapsode, udgatar, griot, ashik) or any poets, especially famous ones. For example, William Shakespeare is known as The Bard.
In the 20th century, the word lost much of its original connotation of Celtic revivalism or Romanticism, and could refer to any professional poet or singer, sometimes in a mildly ironic tone. In the Soviet Union, singers who were outside the establishment were called bards from the 1960s.
https://en.wikipedia.org/wiki/Bard
