1870
ID: 377
Charles Sanders Peirce publishes 'Description of a Notation for the Logic of Relatives', extending Boole's logic to relations
ID: 377
1870
ID: 972
First Vatican Council declares papal infallibility doctrine under Pope Pius IX
ID: 972
1870
ID: 973
Franco-Prussian War begins after Bismarck's manipulation of Ems Dispatch telegram
ID: 973
1870
ID: 974
J.T. Biggs becomes Secretary of Leicester Anti-Vaccination League
ID: 974
1870
ID: 975
Kingdom of Italy captures Rome; Pope Pius IX becomes prisoner of the Vatican
ID: 975
1870
ID: 977
Institute of Chartered Accountants in England and Wales established - creates CA designation
ID: 977
1870
ID: 978
Leopold Kronecker develops theory of algebraic equations systematically
ID: 978
1870
ID: 976
November 1, 1870
Pope Pius IX refuses to recognize Kingdom of Italy with encyclical Respicientes
ID: 976