Image from Wikimedia Commons
Engraving - Public Domain
unknown - Public Domain
Tipoff2013 - CC0 1.0
Ülkün Tansel, der Sohn von O. Tansel -
Hill & Adamson - Public Domain
"The Times-Democrat (New Orleans, LA). - Public Domain
Public Domain
United States Steel Corporation-sponsor of the television show. - Public Domain
Eriotac - CC BY-SA 3.0
Emerson2009 - CC BY-SA 3.0
unknown photographer - Public Domain
Griselda Ramirez Griseldarmz - CC BY-SA 3.0
Yousuf Karsh/Library and Archives Canada/PA-165870 - Public Domain
Ryan Dickey - CC BY 2.0
Image from Wikimedia Commons
Engraving - Public Domain
Villette, Charles-Michel, marquis de, 1736-1793
Image from Wikimedia Commons
Sherman, William T. (William Tecumseh), 1820-1891
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Hance, Henry, 1827-1886
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unknown - Public Domain
Powers, Harriet, 1837-1910
Image from Wikimedia Commons
Tipoff2013 - CC0 1.0
Entsch, Warren
Image from Wikimedia Commons
Ülkün Tansel, der Sohn von O. Tansel -
Tansel, Oğuz, 1915-
Image from Wikimedia Commons
Ortigăo, Ramalho, 1836-1915
Image from Wikimedia Commons
Hill & Adamson - Public Domain
Wood, John Muir, 1805-1892
Image from Wikimedia Commons
"The Times-Democrat (New Orleans, LA). - Public Domain
Brewster, Andre Walker, 1862-1942
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Pole, Thomas, 1753-1829
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Wilson, Charles Thomson Rees, 1869-
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Public Domain
Roe, Arthur, 1912-
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United States Steel Corporation-sponsor of the television show. - Public Domain
Lansing, Robert, 1929-1994
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Macarthur, Elizabeth, 1766?-1850
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Berry, George Leonard, 1882-1948
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Hugh, of Cluny, Saint, 1024-1109
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unknown - Public Domain
Lozada, Manuel, -1873
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Eriotac - CC BY-SA 3.0
Le Bolloc'h, Yvan, 1961-
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Schilling, Jerry
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Capablanca, Josè R.
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Emerson2009 - CC BY-SA 3.0
O'Shaughnessy, James P.
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Robert I, King of Scots, 1274-1329
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Moór, Emanuel
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unknown photographer - Public Domain
Lansil, Walter F. (Walter Franklin), 1846-1925
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Griselda Ramirez Griseldarmz - CC BY-SA 3.0
Jones, Adam, 1963-....
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Simpson, O.J., 1947-
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unknown - Public Domain
Thomashefsky, Bores, 1866-1939
Image from Wikimedia Commons
Yousuf Karsh/Library and Archives Canada/PA-165870 - Public Domain
Macphail, Agnes Campbell, 1890-1954
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unknown - Public Domain
Thou, François de, 1607-1642
Image from Wikimedia Commons
Ryan Dickey - CC BY 2.0
Wrigley Field (Chicago, Ill.)