WHAT ALL HAPPENED MARCH TO NOVEMBER 1870
Find out what all happened March to November 1870

Franco-Prussian War: the Siege of Metz begins, resulting in a decisive Prussian victory on October 23. (3. September 1870)

Having invaded the Papal States a week earlier, the Italian Army lays siege to Rome, entering the city the next day, after which the Pope described himself as a Prisoner in the Vatican. (19. September 1870)

Franco-Prussian War: the Battle of Wörth results in a decisive Prussian victory. (6. August 1870)

Tower Subway, the world's first underground tube railway, opens in London, England, United Kingdom. (2. August 1870)

Bersaglieri corps enter Rome through the Porta Pia and complete the unification of Italy. (20. September 1870)

Old Faithful Geyser is observed and named by Henry D. Washburn during the Washburn-Langford-Doane Expedition to Yellowstone. (18. September 1870)

The New York City Metropolitan Museum of Art is founded. (13. April 1870)

Texas is readmitted to the Union following Reconstruction. (30. March 1870)

The Manitoba Act is given the Royal Assent, paving the way for Manitoba to become a province of Canada on July 15. (12. May 1870)

In the United States, the Weather Bureau (later renamed the National Weather Service) makes its first official meteorological forecast. (1. November 1870)

Franco-Prussian War: the Siege of Paris begins, which will result on January 28, 1871 in the surrender of Paris and a decisive Prussian victory. (19. September 1870)

The Christian holiday of Christmas is declared a federal holiday in the United States. (26. June 1870)

Marshal François Achille Bazaine surrenders to Prussian forces at the conclusion of the Siege of Metz along with 140,000 French soldiers in one of the biggest French defeats of the Franco-Prussian War. (27. October 1870)

Emperor Napoleon III of France is deposed and the Third Republic is declared. (4. September 1870)

Franco-Prussian War: Battle of Sedan – Prussian forces take Napoleon III of France and 100,000 of his soldiers prisoner. (2. September 1870)

Louisa Ann Swain of Laramie, Wyoming becomes the first woman in the United States to cast a vote legally after 1807. (6. September 1870)

The Republic of Ploiești, a failed Radical-Liberal rising against Domnitor Carol of Romania. (8. August 1870)

Franco-Prussian War: the Siege of Metz concludes with a decisive Prussian victory. (23. October 1870)

Reconstruction Era of the United States: Georgia becomes the last of the former Confederate states to be readmitted to the Union. (15. July 1870)

Franco-Prussian War: France declares war on Prussia. (19. July 1870)