On this day, Sept. 23

1806 The Lewis and Clark expedition returned to St. Louis more than two years after setting out for the Pacific Northwest. 1896 The Pittsburgh police department organized a bicycle corps.

1955 A jury in Sumner, Mississippi, acquitted two white men, Roy Bryant and J.W. Milam, of murdering black teenager Emmett Till. (The two men later admitted to the crime in an interview with Look magazine.)

1957 Nine black students who’d entered Little Rock Central High School in Arkansas were forced to withdraw because of a white mob outside.

1996 Josh Gibson, the Pittsburgh Negro League superstar who hit over 800 home runs during a 16-year career with the Homestead Grays and Pittsburgh Crawfords, was officially honored with a marker at Ammons Field in the Hill District by the Pennsylvania Historical and Museum Commission.

1987 The former Braddock Public Library, the oldest Carnegie Library in America, received donations of $80,000 to restore the closed building. Some items are from Stefan Lorant’s “Pittsburgh: The Story of an American City” (digital.library.pitt.edu/chronology).

— Compiled by Alyssa Brown Today’s birthdays: Singer Julio Iglesias, 76. Actor Paul Petersen (TV: “The Donna Reed Show“), 74. Actress-singer Mary Kay Place, 72. Rock star Bruce Springsteen, 70. Actor Jason Alexander, 60. Actor Kip Pardue, 43. Actor Anthony Mackie, 41. Actress Cush Jumbo, 34. Actor Skylar Astin, 32. Tennis player Melanie Oudin, 28.

Thought for today: “I cannot endure to waste anything as precious as autumn sunshine by staying in the house.” — Nathaniel Hawthorne, American author (1804-1864)