WHAT ALL HAPPENED SEPTEMBER TO DECEMBER 1847
Find out what all happened September to December 1847

The Sonderbund is defeated by the joint forces of other Swiss cantons under General Guillaume-Henri Dufour. (29. November 1847)

Sir James Young Simpson, a British physician, discovers the anaesthetic properties of chloroform. (4. November 1847)

Mexican–American War: Six teenage military cadets known as Niños Héroes die defending Chapultepec Castle in the Battle of Chapultepec. American troops under General Winfield Scott capture Mexico City in the Mexican–American War. (13. September 1847)

Stephen Foster's song "Oh! Susanna" is first performed at a saloon in Pittsburgh. (11. September 1847)

Mexican–American War: the Battle of Chapultepec begins. (12. September 1847)

The second Canadian railway line, the Montreal and Lachine Railway, is opened. (19. November 1847)

German inventor and industrialist Werner von Siemens founds Siemens AG & Halske. (1. October 1847)

Henry David Thoreau leaves Walden Pond and moves in with Ralph Waldo Emerson and his family in Concord, Massachusetts. (6. September 1847)

The passenger ship Stephen Whitney is wrecked in thick fog off the southern coast of Ireland, killing 92 of the 110 on board. The disaster results in the construction of the Fastnet Rock lighthouse. (10. November 1847)

Jefferson Davis is elected to the U.S. senate, his first political post. (5. December 1847)

Whitman Massacre: Missionaries Dr. Marcus Whitman, his wife Narcissa, and 15 others are killed by Cayuse and Umatilla Indians, causing the Cayuse War. (29. November 1847)

Mexican–American War: Winfield Scott captures Mexico City. (14. September 1847)