Jules Bordet, Belgian immunologist and microbiologist, Nobel Prize laureate (d. 1961)
Jules Jean Baptiste Vincent Bordet (; 13 June 1870 – 6 April 1961) was a Belgian immunologist and microbiologist. The bacterial genus Bordetella is named after him. The Nobel Prize in Physiology or Medicine was awarded to him in 1919 for his discoveries relating to immunity.

1870Jun, 13
Jules Bordet
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Events on 1870
- 15Jan
Thomas Nast
A political cartoon for the first time symbolizes the Democratic Party with a donkey ("A Live Jackass Kicking a Dead Lion" by Thomas Nast for Harper's Weekly). - 28Feb
Abdülaziz of the Ottoman Empire
The Bulgarian Exarchate is established by decree of Sultan Abdülaziz of the Ottoman Empire. - 30Mar
Reconstruction Era
Texas is readmitted to the Union following Reconstruction. - 12May
Royal Assent
The Manitoba Act is given the Royal Assent, paving the way for Manitoba to become a province of Canada on July 15. - 19Sep
Siege of Paris (1870-71)
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.