Image from Wikimedia Commons
unknown - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
CBS Television - Public Domain
Public Domain
Jjmoxy - CC BY-SA 3.0
Engraved by Raffaello Sanzio Morghen (1758-1833) after Vincenzo Gozzini - Public Domain
Konrad Jacobs, Erlangen - CC BY-SA 2.0
James Granger - Public Domain
JJ Georges - CC BY-SA 3.0
Arad Thomas - Public Domain
SchiDD - CC BY-SA 4.0
Image from Wikimedia Commons
Sahagún, Bernardino de, -1590
Image from Wikimedia Commons
Morin, Jean-Baptiste, 1583-1656
Image from Wikimedia Commons
Morris, Jane, 1839-1914
Image from Wikimedia Commons
Bulwinkle, Alfred Lee, 1883-1950
Image from Wikimedia Commons
Nottingham, Charles Howard, Earl of, approximately 1536-1624
Image from Wikimedia Commons
Hausdorff, Felix, 1868-1942
Image from Wikimedia Commons
Warner, Sidney S. (Sidney Sardus), 1829-1908
Image from Wikimedia Commons
Clarke, James Stanier, 1765?-1834
Image from Wikimedia Commons
unknown - Public Domain
Gairdner, W. T. (William Tennant), Sir, 1824-1907
Image from Wikimedia Commons
Albertson, Frank, 1909-1964
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
McCook, Anson G. (Anson George), 1835-1917
Image from Wikimedia Commons
Smith, Cordwainer, 1913-1966
Image from Wikimedia Commons
CBS Television - Public Domain
Knight, Ted
Image from Wikimedia Commons
Godkin, Edwin Lawrence, 1831-1902
Image from Wikimedia Commons
Drach, Albert, 1902-1995
Image from Wikimedia Commons
Public Domain
Cem, Prince, son of Mehmed II, Sultan of the Turks, 1459-1495
Image from Wikimedia Commons
Steinhaus, Hugo, 1887-1972
Image from Wikimedia Commons
Jjmoxy - CC BY-SA 3.0
Jamieson, Don, 1921-
Image from Wikimedia Commons
Engraved by Raffaello Sanzio Morghen (1758-1833) after Vincenzo Gozzini - Public Domain
Boccaccio, Giovanni, 1313-1375
Image from Wikimedia Commons
Konrad Jacobs, Erlangen - CC BY-SA 2.0
Cohn-Vossen, S. (Stephan), 1902-1936
Image from Wikimedia Commons
Loane, Marcus L.
Image from Wikimedia Commons
James Granger - Public Domain
Greatrakes, Valentine, 1629-1683
Image from Wikimedia Commons
McClurg, James, approximately 1746-1823
Image from Wikimedia Commons
Blore, Eric, 1887-1959
Image from Wikimedia Commons
Holmes, Phillips, 1907-1942
Image from Wikimedia Commons
unknown - Public Domain
Sand, Karl Ludwig, 1795-1820
Image from Wikimedia Commons
Public Domain
McLane Louis 1786-1857
Image from Wikimedia Commons
JJ Georges - CC BY-SA 3.0
Giroud, Françoise
Image from Wikimedia Commons
Arad Thomas - Public Domain
Hard, Gideon, 1797-1885
Image from Wikimedia Commons
SchiDD - CC BY-SA 4.0
Toepler, August, 1836-1912