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unknown - Public Domain
Jack Sarfatti - CC BY-SA 3.0
Nv8200p - CC BY-SA 3.0
William Thomas Davis - Public Domain
Joe Vitale 5 - CC BY-SA 4.0
Mathew Brady Levin Corot Handy - Public Domain
The Schwadron Collection of the National Library of Israel - Public Domain
unknown -
Taber, I. W. (Isaiah West), 1830-1912. - Public Domain
original uploader - CC BY 3.0
Lock & Whitfield - Public Domain
Duranceau - CC BY-SA 4.0
White House Staff Photographers - Public Domain
Public Domain
Pnuao - Public Domain
Ylla (self-portrait) -
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Desnouettes, Charles Lefebvre, 1773-1823
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unknown - Public Domain
Rhead, Louis, 1857-1926
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Gualtieri di Brienne, duca di Atene, -1356
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Jack Sarfatti - CC BY-SA 3.0
Sarfatti, Jack
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Nv8200p - CC BY-SA 3.0
Romano, Carlin
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William Thomas Davis - Public Domain
Baker, Osmyn, 1800-1875
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Joe Vitale 5 - CC BY-SA 4.0
Jakszyk, Jakko M.
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Bucer, Martin, 1491-1551
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unknown - Public Domain
Badoglio, Pietro, 1871-1956
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Inglis, Mark, 1959-
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Talbott, Albert G. (Albert Gallatin), 1808-1887
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Brambilla, Giovanni Alessandro, 1728-1800
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Mathew Brady Levin Corot Handy - Public Domain
Stenger, W. S. (William Shearer), 1840-1918
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The Schwadron Collection of the National Library of Israel - Public Domain
Stutschewsky, Joachim, 1891-1982
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Bower, Archibald, 1686-1766
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unknown -
Kluyver, A.J. (Albert Jan), 1888-1956
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Taber, I. W. (Isaiah West), 1830-1912. - Public Domain
Chabot, Anthony, 1813-1888
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Henriot, Philippe, 1889-1944
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Hamill, James A. (James Alphonsus), 1877-1941
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Dwight, Henry Williams, 1788-1845
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original uploader - CC BY 3.0
Manos, Constantine
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Lock & Whitfield - Public Domain
Playfair, Lyon Playfair, baron, 1818-1898
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Duranceau - CC BY-SA 4.0
Sharman, Rodney
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Pearlman, Moshe, 1911-1986
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White House Staff Photographers - Public Domain
Bradley, Ed, 1941-2006
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Public Domain
Jones, Hilary Pollard, 1863-1938
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Oborin, Lev, 1907-1974
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Pnuao - Public Domain
Sasakawa, Ryōichi, 1899-1995
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Montesquieu, Charles de Secondat, baron de, 1689-1755
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Ylla (self-portrait) -
Ylla, 1910-1955