1544: Francis, the King of France, and Charles V of Austria sign a peace treaty in Crespy, France, ending a 20-year war.
1777: American forces under Gen. Horatio Gates meet British troops led by Gen. John Burgoyne at Saratoga Springs, New York.
1788: Charles de Barentin becomes lord chancellor of France.
1863: In Georgia, the two-day Battle of Chickamauga begins as Union troops under George Thomas clash with Confederates under Nathan Bedford Forrest.
1900: President Emile Loubet of France pardons Jewish army Capt. Alfred Dreyfus, twice court-martialed and wrongly convicted of spying for Germany.
1948: Moscow announces it will withdraw soldiers from Korea by the end of the year.
1957: The first underground nuclear test takes place in Nevada.
1973: Carl XVI Gustaf is invested as King of Sweden following the death of his grandfather King Gustaf VI Adolf.
1985: An earthquake kills thousands in Mexico City.
1991: German hikers near the Austria-Italy border discover the naturally preserved mummy of a man from about 3,300 BC; Europe’s oldest natural human mummy, he is dubbed Otzi the Iceman because his lower half was encased in ice.
Born on September 19
1904: Bergen Evans, educator and author who wrote the Dictionary of Contemporary American Usage.
1915: Elizabeth Stern, Canadian pathologist who first published a case report linking a specific virus to a specific cancer.
1927: Helen Carter, singer, member of the pioneering all-female country group Mother Maybelle and the Carter Sisters.
1930: Bettye Lane, photographer noted for documenting major events of the feminist, civil rights and gay rights movements in the US.