WHAT HAPPENED IN 1873.
Look what happened the 1873.

American Indian Wars: while protecting a railroad survey party in Montana, the United States 7th Cavalry, under Lieutenant Colonel George Armstrong Custer clashes for the first time with the Cheyenne and Lakota people near the Tongue River; only one man on each side is killed. (4. August 1873)

Albert Bridge in Chelsea, London opens. (23. August 1873)

Austrian explorers Julius von Payer and Karl Weyprecht discover the archipelago of Franz Joseph Land in the Arctic Sea. (30. August 1873)

Cetshwayo ascends to the throne as king of the Zulu nation following the death of his father Mpande. (1. September 1873)

Franco-Prussian War: The last German troops leave France upon completion of payment of indemnity. (15. September 1873)

Panic of 1873: The U.S. bank Jay Cooke & Company declares bankruptcy, triggering a series of bank failures. (18. September 1873)

Captain Jack and companions are hanged for their part in the Modoc War. (3. October 1873)

A meeting at the U.S. Naval Academy establishes the U.S. Naval Institute. (9. October 1873)

Yale, Princeton, Columbia, and Rutgers universities draft the first code of American football rules. (20. October 1873)