September 20, 1881 (136 years ago)
•Chester A. Arthur is inaugurated as the 21st President of the United States following the assassination of James Garfield.

September 20, 1967 (50 years ago)
•The RMS Queen Elizabeth 2 is launched at John Brown & Company, Clydebank, Scotland. It is operated by the Cunard Line.

September 20, 1979 (38 years ago)
•Lee Iacocca is elected president of the Chrysler Corporation.

September 20, 1984 (33 years ago)
•The Cosby Show debuts on NBC