How old would Karl Weierstraß be today?

Ada Lovelace

Mathematician who wrote what is considered the first computer program, for Charles Babbage's Analytical Engine.

Photo: Antoine Claudet · Public domain

Otto von Bismarck

Otto Eduard Leopold, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (1 April 1815 – 30 July 1898), was a German statesman and diplomat who oversaw the unification of Germany and served as its first chancellor from 1871 to 1890.

Source: Wikipedia · CC BY-SA 4.0

Photo: Jacques Pilartz · Public domain

George Boole

George Boole ( BOOL; 2 November 1815 – 8 December 1864) was an English mathematician and philosopher often credited with revolutionizing logic by transforming it from a philosophical study of language into a mathematical system of algebraic equations using binary values and logical operators.

Source: Wikipedia · CC BY-SA 4.0

Photo: Samuel Prout Newcombe (c1824-1912) · Public domain

John Bosco

John Melchior Bosco, SDB (Italian: Giovanni Melchiorre Bosco; Piedmontese: Gioann Melchior Bòsch; 16 August 1815 – 31 January 1888), popularly known as Don Bosco (IPA:), was an Italian Catholic priest, educator, and writer.

Source: Wikipedia · CC BY-SA 4.0

Photo: Carlo Felice Deasti · Public domain

Elizabeth Cady Stanton

Elizabeth Cady Stanton (née Cady; November 12, 1815 – October 26, 1902) was an American writer and activist who was a leader of the women's rights movement in the U.S. during the mid- to late-19th century.

Source: Wikipedia · CC BY-SA 4.0

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John A. Macdonald

Sir John Alexander Macdonald (10 or 11 January 1815 – 6 June 1891) was the first prime minister of Canada, serving from 1867 to 1873 and from 1878 until his death in 1891. He was the dominant figure of Canadian Confederation, and had a political career that spanned almost half a century.

Source: Wikipedia · CC BY-SA 4.0

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