In a pile of reel-to-reel cassette tapes in an Arizona Goodwill store, was a rare taped recording of a speech made by Dr. Martin Luther King, Jr. The woman who found it, Mary Scanlon, had no idea the tape was rare when she bought it for $3. Dr. King made the speech at Arizona State University and Tanner Chapel African Methodist Episcopal Church in 1964.
Ironically, Arizona was the same state that refused to recognize Martin Luther King Jr. day as a real holiday. Only years later did Arizona rescind the decision, becoming the first state with a voter-approved King holiday in 1992.
The original recording was owned by late civil rights activist Lincoln Ragsdale. Ragsdale sent the tapes to be digitized somewhere in Kentucky and somehow they ended up in the Arizona Goodwill store.