Image from Wikimedia Commons
John Greenwood - Public Domain
George Dawe - Public Domain
Taigariver - CC BY-SA 3.0
256 Fifth Ave - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
unknown -
unknown<br/> - Public Domain
Ulysses Robert Brooks - Public Domain
gdcgraphics at https://www.flickr.com/photos/gdcgraphics/ -
Courtesy Century Co. - Public Domain
Johannes Leo Africanus; John Pory - Public Domain
John Plumbe, Jr. - Public Domain
Antonyhare - Public Domain
anonymous - Public Domain
Nestlé - CC BY 2.0
unknown - Public Domain
Willy Wilcke - CC BY-SA 3.0
United States Senate Historical Office - Public Domain
Edharary - CC BY-SA 4.0
Karohemd - CC BY-SA 3.0
Image from Wikimedia Commons
Henle, Jacob, 1809-1885
Image from Wikimedia Commons
John Greenwood - Public Domain
Greenwood, John, 1727-1792
Image from Wikimedia Commons
Wainer, Howard.
Image from Wikimedia Commons
George Dawe - Public Domain
Langeron, Louis-Alexandre Andrault, comte de, 1761-1831
Image from Wikimedia Commons
Taigariver - CC BY-SA 3.0
Rosen, Barbara, 1953-....
Image from Wikimedia Commons
256 Fifth Ave - Public Domain
Goodwin, Nat. C. (Nathaniel Carll), 1857-1919
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Vest, George Graham, 1830-1904
Image from Wikimedia Commons
Hunnicutt, Arthur, 1911-1979
Image from Wikimedia Commons
Wilson, William A., 1914-2009
Image from Wikimedia Commons
Vega, Garcilaso de la 1503-1536
Image from Wikimedia Commons
unknown -
Soubeiran, Eugène, 1797?-1858
Image from Wikimedia Commons
unknown<br/> - Public Domain
Calhoun, James, 1845-1876
Image from Wikimedia Commons
Meredith, William, 1919-2007
Image from Wikimedia Commons
Ulysses Robert Brooks - Public Domain
Brawley, William H., 1841-1916
Image from Wikimedia Commons
Dorset, Thomas Sackville, Earl of, 1536-1608
Image from Wikimedia Commons
gdcgraphics at https://www.flickr.com/photos/gdcgraphics/ -
Siddig, Alexander, 1965-....
Image from Wikimedia Commons
Courtesy Century Co. - Public Domain
Anderson, Richard Heron, 1821-1879
Image from Wikimedia Commons
Cheney, Lynne V.
Image from Wikimedia Commons
Johannes Leo Africanus; John Pory - Public Domain
Pory, John, 1572-1636
Image from Wikimedia Commons
John Plumbe, Jr. - Public Domain
Binns, John, 1772-1860
Image from Wikimedia Commons
Antonyhare - Public Domain
Hare, William
Image from Wikimedia Commons
anonymous - Public Domain
Cortés, Hernán, 1485-1547
Image from Wikimedia Commons
Nestlé - CC BY 2.0
Nestlé
Image from Wikimedia Commons
Madsen, Karl, 1855-1938
Image from Wikimedia Commons
unknown - Public Domain
Lebedeff, Ivan, 1894-1953
Image from Wikimedia Commons
unknown - Public Domain
Wyneken, Friedrich, 1810-1876
Image from Wikimedia Commons
Willy Wilcke - CC BY-SA 3.0
Weidemann, Friedrich, 1871-1919
Image from Wikimedia Commons
United States Senate Historical Office - Public Domain
Millikin, Eugene Donald, 1891-1958
Image from Wikimedia Commons
Edharary - CC BY-SA 4.0
Petlin, Irving, 1934-
Image from Wikimedia Commons
Karohemd - CC BY-SA 3.0
Long, Stanley, 1933-2012