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unknown - Public Domain
James Dodson (1710-1757) - Public Domain
MSUAHC, H. Owen Reed Papers - CC0 1.0
Public Domain
Vegafi - CC BY-SA 3.0
Franklogue - CC BY-SA 3.0
Los Alamos National Laboratory -
Jacob Adriaensz. Backer - Public Domain
Lynn Gilbert - CC BY-SA 4.0
Přemysl Otakar - CC BY-SA 4.0
CBS Television - Public Domain
Camilo José Vergara - CC BY-SA 3.0
City of Chicago - Public Domain
Lubos Motl, Lumidek - CC BY 3.0
newspaper press photo, Rome, Italy - Public Domain
Max Abraham - Public Domain
Editors: Cathy Tillack and Karen Still - Public Domain
Martin Kraft - CC BY-SA 3.0
Frederick Sargent - Public Domain
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Johannes, Monachus, ca. 1250-1313
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unknown - Public Domain
Carrodus, J.T. (John Tiplady), 1836-1895
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Boorstin, Daniel J., 1956
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Barrell, Joseph, 1869-
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James Dodson (1710-1757) - Public Domain
Dodson, James, -1757
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MSUAHC, H. Owen Reed Papers - CC0 1.0
Reed, H. Owen, 1910-2014
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Pember, Phoebe Yates, 1823-1913
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Public Domain
Adrain, Robert, 1775-1843
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Lyon, Mary F.
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Vegafi - CC BY-SA 3.0
Gilliam, Terry
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Franklogue - CC BY-SA 3.0
Beckwith, John W. (John Watrous), 1831-1890
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Sennett, George B. (George Burritt), 1840-1900
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Los Alamos National Laboratory -
Bacher, Robert F. (Robert Fox), 1905-2004
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Jacob Adriaensz. Backer - Public Domain
Breenbergh, Bartholomeus, 1599?-1657
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unknown - Public Domain
Arrieu, Claude, 1903-1990
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Lynn Gilbert - CC BY-SA 4.0
Child, Julia, 1912-2004
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Přemysl Otakar - CC BY-SA 4.0
Zeman, Karel, 1910-1989
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CBS Television - Public Domain
Ghostley, Alice, 1926-2007
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Portoghesi, Paolo.
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Manners-Sutton, Charles, 1755-1828
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Camilo José Vergara - CC BY-SA 3.0
Vergara, Camilo J.
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City of Chicago - Public Domain
Morris, Buckner Stith, 1800-1879
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Lubos Motl, Lumidek - CC BY 3.0
Vilenkin, A. (Alexander)
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newspaper press photo, Rome, Italy - Public Domain
Rossellini, Roberto, 1906-1977
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Max Abraham - Public Domain
Abraham, Max, 1875-1922
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unknown - Public Domain
Firbank, Ronald, 1886-1926
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Editors: Cathy Tillack and Karen Still - Public Domain
Romney, Marion G., 1897-1988
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Martin Kraft - CC BY-SA 3.0
Walsh, Aisling
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Behrman, Martin, 1864-1926
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Frederick Sargent - Public Domain
Bagot, William Bagot, Baron, 1811-1887