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MarkVrahas - CC BY-SA 4.0
unknown - Public Domain
L. U. Reavis is the book's author. I couldn't find any specific citation for the illustrator - Public Domain
Claritablue - CC BY-SA 3.0
Flickr user Marina Silva - CC BY 2.0
Public Domain
Los Alamos National Laboratory - Public Domain
Original uploader was Fastfission - Public Domain
Ibigelow - CC BY-SA 3.0
Originally uploaded by Creton4 -
Siebbi - CC BY 3.0
Sarah Stierch - CC BY 2.0
The Biographical Society, Boston - Public Domain
MyName (JVC3ETA - CC BY-SA 3.0
unknown - CC BY 4.0
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Anghiera, Pietro Martire d' 1457-1526
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MarkVrahas - CC BY-SA 4.0
Hershman-Leeson, Lynn, 1941-
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unknown - Public Domain
Stearns, Abel, 1798-1871
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unknown - Public Domain
Winters, Jonathan
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Egaña, Mariano, 1793-1846
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Straet, Jan van der 1523-1605
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unknown - Public Domain
Goursat, Édouard, 1858-1936
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L. U. Reavis is the book's author. I couldn't find any specific citation for the illustrator - Public Domain
Allen, Thomas, 1813-1882
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unknown - Public Domain
McCormick, Anne O'Hare, 1880-1954
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Claritablue - CC BY-SA 3.0
Sutton, Antony C.
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Flickr user Marina Silva - CC BY 2.0
Lovejoy, Thomas E.
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Ahronovitch, Yuri, 1932-2002
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Public Domain
Mendele Mokher Sefarim, 1835-1917
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Los Alamos National Laboratory - Public Domain
Bainbridge, Kenneth T. (Kenneth Tompkins), 1904-1996
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Crocker, Charles, 1822-1888
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Ogle, Charles, 1865-1940
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Original uploader was Fastfission - Public Domain
Wilson, Robert R., 1914-2000
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Hooker, William Jackson, Sir, 1785-1865
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Ibigelow - CC BY-SA 3.0
Goldstine, Herman H. (Herman Heine), 1913-2004
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Originally uploaded by Creton4 -
Hamblen, Stuart, 1908-1989
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Siebbi - CC BY 3.0
Sander, Otto, 1941-2013
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Piddington, Albert Bathurst, 1862-1945
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Sarah Stierch - CC BY 2.0
Bailey, Herman Kofi, Jr., 1931-1981
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Palmer, John M. (John McAuley), 1817-1900
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Domenichi, Lodovico, 1515-1564
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Boeckh, August, 1785-1867
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The Biographical Society, Boston - Public Domain
Fletcher, Ryland, 1799-1885
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unknown - Public Domain
Orrock, James, 1829-1913
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MyName (JVC3ETA - CC BY-SA 3.0
Cabañas, José Trinidad Francisco, 1805-1871
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unknown - CC BY 4.0
Haring, Keith