Image from Wikimedia Commons
unknown - Public Domain
Joseguztorres - CC BY-SA 3.0
U.S. Government - Public Domain
Artist unidentified - Public Domain
Eminent Authors Pictures Inc. - Public Domain
Максим Мальков - CC BY-SA 4.0
Arthur Wellington Brayley, Arthur Wilson Tarbell, Joe Mitchell Chapple - Public Domain
North Dakota. Dept. of State - Public Domain
Gaston Vuillier (dessin) d'après une photographie de Michelez - Public Domain
UzVer kms - Public Domain
Public Domain
Guttiwuts - CC BY-SA 3.0
Unidentified photographer - Public Domain
John Faber Jean-Baptiste van Loo - Public Domain
Edwardx - CC BY-SA 3.0
C. H. Richer - Public Domain
John W. Jordan, compiler and editor. Lewis Historical Publishing Company (New York, NY), publisher. - Public Domain
Image from Wikimedia Commons
unknown - Public Domain
Tello, Julio C. (Julio César), 1880-1947
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Thompson, Craig, 1975-....
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Joseguztorres - CC BY-SA 3.0
Cazals, Felipe, 1937-....
Image from Wikimedia Commons
U.S. Government - Public Domain
Osmeña, Sergio, 1878-1961
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Artist unidentified - Public Domain
Merry, Robert, 1755-1798
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Eminent Authors Pictures Inc. - Public Domain
Scott, Leroy, 1875-1929
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Zhang, Aijia, 1953-
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Boccioni, Umberto, 1882-1916
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Максим Мальков - CC BY-SA 4.0
Capecchi, Renato
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Arthur Wellington Brayley, Arthur Wilson Tarbell, Joe Mitchell Chapple - Public Domain
Heming, Violet, 1897-1981
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Fairfax, Robert, 1666-1725
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North Dakota. Dept. of State - Public Domain
Haugland, Brynhild, 1905-1998
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Gaston Vuillier (dessin) d'après une photographie de Michelez - Public Domain
Gaillard, Ferdinand, 1834-1887
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Zioncheck, Marion A. (Marion Anthony), 1901-1936
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UzVer kms - Public Domain
Yamamoto, Masao, 1957-
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Carradine, Keith, 1949-
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Jones, Lloyd, 1955-....
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Public Domain
Langdon, John, 1741-1819
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Stanley, John Mix, 1814-1872
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Guttiwuts - CC BY-SA 3.0
Wallace, Barbara Brooks, 1922-
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Unidentified photographer - Public Domain
Keller, Henry G., 1869-1949
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John Faber Jean-Baptiste van Loo - Public Domain
Heidegger, John James, 1659?-1748
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Edwardx - CC BY-SA 3.0
Playfair, Nigel, Sir, 1874-1934
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Tucker, Luther
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Public Domain
Hibbard, Harry, 1816-1872
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unknown - Public Domain
Unger, Karoline, 1803-1877
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unknown - Public Domain
Marshall, William Calder, 1813-1894
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C. H. Richer - Public Domain
Simonds, Guy Granville, 1903-1974
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Urich, Robert
Image from Wikimedia Commons
John W. Jordan, compiler and editor. Lewis Historical Publishing Company (New York, NY), publisher. - Public Domain
Darlington, Smedley, 1827-1899