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en - Public Domain
NASA - Public Domain
Fondo Antiguo de la Biblioteca de la Universidad de Sevilla - CC BY 2.0
From 1900's "The Litchfield Book of Days", edited by George Copeland Boswell (who died in 1910) - Public Domain
United Artists Corporation - Public Domain
Nv8200p - CC BY-SA 3.0
Pieter de Jode II (died 1674) - Public Domain
Steve Petteway, photographer for the US Supreme Court - Public Domain
James Wallace Black - Public Domain
Indalecio Ojanguren - CC BY-SA 3.0
Published in 1858 - Public Domain
unidentified staff artist / Stellar Publishing - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Roger Higgins, World Telegram staff photographer - Public Domain
Bain - Public Domain
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Hönl, Helmut 1903-1981
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Selva, Giovanni Antonio, 1753?-1819
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Powers, Caleb, 1869-1932
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Jones, Robert F. (Robert Franklin), 1907-1968
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Madariaga, Salvador de
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en - Public Domain
Moore, James E. (James Edward), 1902-1986
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Hamblin, Jacob, 1819-1886
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NASA - Public Domain
White, Edward Higgins, II, 1930-1967
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Fondo Antiguo de la Biblioteca de la Universidad de Sevilla - CC BY 2.0
Morales, Ambrósio de, 1513-1591
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Lutosławski, Wincenty
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From 1900's "The Litchfield Book of Days", edited by George Copeland Boswell (who died in 1910) - Public Domain
Woodruff, George C. (George Catlin), 1805-1885
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Brasseur de Bourbourg, abbé, 1814-1874
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United Artists Corporation - Public Domain
Jean, Gloria
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Nv8200p - CC BY-SA 3.0
Bird, Sarah.
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Demers, Modeste, 1809-1871
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Ozi, Étienne, 1754-1813
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Urhan, Chrétien, 1790-1845
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Bilderdijk, Willem, 1756-1831
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Ghormley, Robert Lee, 1883-1958
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Pieter de Jode II (died 1674) - Public Domain
Marchant, Pierre, 1585-1661
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Steve Petteway, photographer for the US Supreme Court - Public Domain
Stevens, John Paul, 1920-2019
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James Wallace Black - Public Domain
Crowninshield, Casper, 1837-1897
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Colville, Alex, 1920-2013
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Lockhart, James A. (James Alexander), 1850-1905
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Indalecio Ojanguren - CC BY-SA 3.0
Uzcudun, Paulino, 1899-1985
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Published in 1858 - Public Domain
Milburn, William Henry, 1823-1903
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unidentified staff artist / Stellar Publishing - Public Domain
Zagat, Arthur Leo, 1896-1949
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Mathew Brady Levin Corot Handy - Public Domain
Sargent, A. A. (Aaron Augustus), 1827-1887
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Roger Higgins, World Telegram staff photographer - Public Domain
Peale, Norman Vincent, 1898-1993
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Bain - Public Domain
Winter, William, 1836-1917