Via PBS News Hour:
In November of 2013, an intern at the New York State Museum in Albany uncovered the only known recording of a speech delivered by Dr. Martin Luther King Jr. on Sept. 12, 1962, at the Park Sheraton Hotel in New York City.
For decades, state officials believed the only remnant of King’s remarks was an annotated copy, marked up by an audio engineer.
The speech is notable in that it captures King at a critical moment in the civil rights movement. He and his allies had launched an unsuccessful campaign to integrate the city of Albany, Georgia — and in the three weeks...