Events
Franco-Prussian War (July 19, 1870)Dry Cell Battery (1870)Atlas Bear extinction (1870)Gilded Age (1870-1890)The Great Chicago Fire (Oct. 8-10, 1871)German Empire began (1871)Yellowstone National Park
(March 1, 1872)First Kentucky Derby
(May 17, 1875)Bell Telephone (1875)The Battle of Big Horn
(July 2, 1876)19th Amendment (1878)The Incandescent Lightbulb
(1879)First Cash Register (1879)
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