Canadian folk music has a long history, dating from the 16th and 17th century, mostly derived from the music of early settlers; much earlier for the music of indigenous people. Folk music thus differentiates between traditional and contemporary. Many of Canada's most influential folk artists emerged in the contemporary folk music era, notably Bruce Cockburn, Buffy Sainte-Marie, Ferron, Gordon Lightfoot, Joni Mitchell, Kate & Anna McGarrigle, Leonard Cohen, Murray McLauchlan, Stan Rogers, Valdy, Penny Lang, The Rankin Family and Wade Hemsworth. In the 1970s, chansonniers grew steadily less popular with the encroachment of popular rock bands and other artists, and many of the folk clubs, such as the Montreal Folk Workshop, and groups such as The Raftsmen, the Mountain City Four and, eventual