US Library of Congress

US Library of Congress has a National Recording Registry of important sound recordings. It is a fascinating list. From Twinkle Twinkle Little Star (circa 1888), through See See Rider Blues by Gertrude 'Ma' Rainey (1923), Harvard Vocarium record series: T.S. Eliot, W.H. Auden, others, reciting (1930-1940s), Martin Luther King's I Have a Dream (1963), and loads more besides. Dylan clocks in at #126 with one of my all-time favourite Dylan albums: The Freewheelin' Bob Dylan. It's a great list. See for yourself.