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Neruda50 - Public Domain
Nika Kaslow - Public Domain
Jörg Zägel - CC BY-SA 3.0
Nv8200p - CC BY-SA 3.0
Robobix - CC BY-SA 4.0
unknown - Public Domain
Johnmaxmena2 - CC BY-SA 4.0
Jahresbericht der Deutschen Mathematiker-Vereinigung 1915 - Public Domain
Helge Øverås - CC BY-SA 3.0
unknown photographer - Public Domain
Boberger - CC BY-SA 3.0
UNH931 - CC BY-SA 4.0
The Rochester Athenæum and Mechanics Institute - Public Domain
anonymous - Public Domain
Tzolag Hovsepian - CC BY-SA 4.0
NASA - Public Domain
Philips Records - Public Domain
Kate Grenville - CC BY-SA 3.0
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Neruda50 - Public Domain
Carrera Andrade, Jorge, 1903-1978
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Nika Kaslow - Public Domain
Murdoch, Stuart
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Jörg Zägel - CC BY-SA 3.0
Neander, August, 1789-1850
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Wolf, Konrad, 1925-1982
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Horsfield, Thomas, 1773-1859
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Nv8200p - CC BY-SA 3.0
Sanchez, Alex, 1957-
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Robobix - CC BY-SA 4.0
Christiansen, C. (Christian), 1843-1917
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Ipatieff, Vladimir N. (Vladimir Nikolaevich), 1867-1952
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unknown - Public Domain
Morritt, Charles, 1861-1936
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unknown - Public Domain
Bonney, Lores, 1897-
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Whitlam, Gough, 1916-
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Harnett, William Michael, 1848-1892
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Utterback, Camille, 1970-
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Johnmaxmena2 - CC BY-SA 4.0
Bell, Cool Papa, 1903-1991
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Jahresbericht der Deutschen Mathematiker-Vereinigung 1915 - Public Domain
Burkhardt, Heinrich, 1861-1914
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Provost, Jan, 1465-1529
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Helge Øverås - CC BY-SA 3.0
Stewart, Rod
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Żeleński, Tadeusz, 1874-1941
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unknown photographer - Public Domain
Bradford, William, 1823-1892
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Boberger - CC BY-SA 3.0
Klein, George, 1925-
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UNH931 - CC BY-SA 4.0
Abramson, Seth, 1976-
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Hyndman, H.M. (Henry Mayers), 1842-1921
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The Rochester Athenæum and Mechanics Institute - Public Domain
Randall, John A. (John Arthur), 1881-
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anonymous - Public Domain
Sapieha, Aleksander, 1773-1812
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unknown - Public Domain
Quintilian
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Tzolag Hovsepian - CC BY-SA 4.0
Saroyan, William, 1908-1981
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Lupino, Ida, 1918-1995.
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NASA - Public Domain
Fletcher, James Chipman, 1919-1991
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Philips Records - Public Domain
Gall, France
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Kate Grenville - CC BY-SA 3.0
Grenville, Kate, 1950-....