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Aleksandr Drevin - Public Domain
Vasser Encyclopedia - Public Domain
Gangulybiswarup - CC BY 3.0
SilverTreasure - CC BY-SA 3.0
Library of the London School of Economics and Political Science -
Henry Walter Barnet - CC BY 3.0
Public Domain
anonymous - Public Domain
PHC Harold Wise - Public Domain
Elliott & Fry -
unknown - Public Domain
Joi Ito - CC BY 2.0
MavsFan28 - CC BY-SA 4.0
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Guerra, Garcia, 1545-1612
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Cadigan, Pat, 1953-....
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Aleksandr Drevin - Public Domain
Udalʹt︠s︡ova, Nadezhda, 1886-1961
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Vasser Encyclopedia - Public Domain
Raymond, John H. (John Howard), 1814-1878
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Gangulybiswarup - CC BY 3.0
Chaudhuri, Amit, 1962-....
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Breshko-Breshkovskai︠a︡, Ekaterina Konstantinovna, 1844-1934
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Cunningham, D. J. (Daniel John), 1850-1909
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SilverTreasure - CC BY-SA 3.0
Barron, Steve, 1956-
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Library of the London School of Economics and Political Science -
Dahrendorf, Ralf, 1929-2009
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Donck, Adriaen van der 1620-1655
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Henry Walter Barnet - CC BY 3.0
Wilson, Sarah, Lady, -1929
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Vermigli, Pietro Martire, 1499-1562
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Clark, William Patrick, 1931-2013
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Grubb, E. Burd (Edward Burd), 1841-1913
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Public Domain
Mores, Edward Rowe, 1730-1778
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Bolton, Chester Castle, 1882-1939
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Hay, James, 1881-1940
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Public Domain
O'Ferrall, Charles T. (Charles Triplett), 1840-1905
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Vallotti, Francesco Antonio, 1697-1780
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anonymous - Public Domain
Tubin, Eduard, 1905-1982
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Polignac, Jules Auguste Armand Marie, prince de, 1780-1847
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Kershner, Irvin
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Leicester, Lettice Dudley, Countess of, 1543-1634
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PHC Harold Wise - Public Domain
Wilson, Harold, 1916-1995
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Elliott & Fry -
Robertson, J.M. (John Mackinnon), 1856-1933
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Saxe, Maurice, comte de, 1696-1750
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unknown - Public Domain
La Garde, Louis A. (Louis Anatole), 1849-1920
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Joi Ito - CC BY 2.0
Zittrain, Jonathan (Jonathan L.), 1969-
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MavsFan28 - CC BY-SA 4.0
Harmon, Angie, 1972-
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Vos, Cornelis de, 1584 or 1585-1651