Martin Luther King Jr. delivers his Nobel Peace Prize acceptance speech in Norway in 1964. In King's hometown of Atlanta, social conservatives at first refused to attend an integrated dinner in his honor.
Multiple lawsuits accuse the New York City Police Department of pressuring officers into fulfilling monthly quotes for tickets and arrests, resulting in warrantless stops. The NYPD denies the allegations.
Pet Rock creator Gary Ross Dahl became a millionaire from his rock sales in the 1970s. Each rock came in a special box (bottom left) with a detailed instruction manual.
San Francisco Chronicle/AP