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Mingle MediaTV - CC BY-SA 2.0
Bobo12345 - CC BY-SA 3.0
Alexander Sutherland (book author) - Public Domain
Portrait credited to "Daniele" - Public Domain
Lesula - CC BY-SA 3.0
Harris & Ewing, photographer - Public Domain
Filo cz - CC BY-SA 3.0
unknown - Public Domain
Walker & Boutall - Public Domain
"From an engraving by Henry Meyer, after Samuel Woodforde", p. xxiii. Meyer died in 1847. - Public Domain
U.S. House of Representatives - Public Domain
JH-Foundation - CC BY-SA 3.0
Ernest Herbert Mills - Public Domain
User at project link - Public Domain
G. Staal - Public Domain
U.S. Department of Transportation - Public Domain
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Mingle MediaTV - CC BY-SA 2.0
Alexander, Sasha, 1973-
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Young, William, Sir, 1725?-1788
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Juan, Jorge, 1713-1773
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Easley, Michael F., 1950-
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Bobo12345 - CC BY-SA 3.0
Harada, Masazumi, 1934-2012
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Alexander Sutherland (book author) - Public Domain
Lonsdale, William, 1799-1864
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Portrait credited to "Daniele" - Public Domain
Regli, Francesco, 1802-1866
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Lesula - CC BY-SA 3.0
Saijonmaa, Arja
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Harris & Ewing, photographer - Public Domain
Smuts, Jan Christiaan, 1870-1950
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Filo cz - CC BY-SA 3.0
Sutnar, Ladislav
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Thorndike, Russell, 1885-1972
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unknown - Public Domain
Dixey, Henry E., 1859-1943
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Walker & Boutall - Public Domain
Burton, Robert, 1577-1640
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unknown - Public Domain
Blegen, Carl W. (Carl William), 1887-1971
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"From an engraving by Henry Meyer, after Samuel Woodforde", p. xxiii. Meyer died in 1847. - Public Domain
Maitland, Frederick Lewis, 1777-1839
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Agnesi, Maria Teresa, 1720-1795
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U.S. House of Representatives - Public Domain
Gutiérrez, Luis V. (Luis Vicente), 1953-
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Partridge, George, 1740-1828
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Barbour, Thomas, 1884-1946
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Boyle, John, 1852-1917
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unknown - Public Domain
Taut, Bruno, 1880-1938
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JH-Foundation - CC BY-SA 3.0
Hübner, Julius, 1806-1882
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Donoho, Gaines Ruger, 1857-1916
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Ernest Herbert Mills - Public Domain
Chesterton, G.K. (Gilbert Keith), 1874-1936
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User at project link - Public Domain
Basile, Arturo
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unknown - Public Domain
Miller, Charles Henry, 1842-1922
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G. Staal - Public Domain
Brunet, Jacques-Charles, 1780-1867
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Li, He, 790-816
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U.S. Department of Transportation - Public Domain
King, Edward J., 1925-2006
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unknown - Public Domain
Zeid, Fahrelnissa, 1901-1991