Image from Wikimedia Commons
Hamilton Easter Field - Public Domain
unknown - Public Domain
Casa Rosada - Public Domain
Bahget Iskander http://iskander.hu/ - CC BY 4.0
Tomás Mur - Public Domain
Konrad Jacobs, Erlangen, Copyright is with MFO - CC BY-SA 2.0
Nightscream - CC BY 3.0
Kingh81 - CC BY-SA 3.0
Samuel Freeman published by Fisher Son & Co, John Hoppner - Public Domain
Rainer Ebert - CC BY-SA 2.0
Greg Hernandez - CC BY 2.0
שושנה מורג - CC0 1.0
Image from Wikimedia Commons
Best, Denzil
Image from Wikimedia Commons
Ochab, Edward, 1906-1989
Image from Wikimedia Commons
Hamilton Easter Field - Public Domain
Field, Hamilton Easter, 1873-1922
Image from Wikimedia Commons
Metchnikoff, Elie, 1845-1916
Image from Wikimedia Commons
Poggendorff, J. C. (Johann Christian), 1796-1877
Image from Wikimedia Commons
Hollar, Wenceslaus, 1607-1677
Image from Wikimedia Commons
unknown - Public Domain
Morgan, George Horace, 1855-1948
Image from Wikimedia Commons
Ali, Tariq
Image from Wikimedia Commons
Greenewalt, Mary Elizabeth Hallock, 1871-1950
Image from Wikimedia Commons
Casa Rosada - Public Domain
Lanusse, Alejandro A. (Alejandro Agustín), 1918-1996
Image from Wikimedia Commons
Bahget Iskander http://iskander.hu/ - CC BY 4.0
Illyés, Gyula, 1902-1983
Image from Wikimedia Commons
Tomás Mur - Public Domain
Marroquín, Francisco, -1563
Image from Wikimedia Commons
Luckyj, George Stephen Nestor, 1919-2001
Image from Wikimedia Commons
Konrad Jacobs, Erlangen, Copyright is with MFO - CC BY-SA 2.0
Lorenzen, Paul, 1915-1994
Image from Wikimedia Commons
Nightscream - CC BY 3.0
O'Barr, J.
Image from Wikimedia Commons
Kingh81 - CC BY-SA 3.0
Peregrine, Peter N. (Peter Neal), 1963-
Image from Wikimedia Commons
Samuel Freeman published by Fisher Son & Co, John Hoppner - Public Domain
Nares, Robert, 1753-1829
Image from Wikimedia Commons
Rainer Ebert - CC BY-SA 2.0
Cohen, Carl, 1931-....
Image from Wikimedia Commons
Schubert, Johann Andreas 1808-1870
Image from Wikimedia Commons
Smith, J.M. Powis (John Merlin Powis), 1866-1932
Image from Wikimedia Commons
Duni, Egidio, 1708-1775
Image from Wikimedia Commons
Pellan, Alfred, 1906-1988
Image from Wikimedia Commons
Rodríguez, Carlos Rafael 1913-
Image from Wikimedia Commons
Greg Hernandez - CC BY 2.0
Polo, Teri, 1969-
Image from Wikimedia Commons
unknown - Public Domain
Tulou, Jean-Louis, 1786-1865
Image from Wikimedia Commons
Papini, Giovanni, 1881-1956
Image from Wikimedia Commons
Morris, Leon, 1914-2006
Image from Wikimedia Commons
Lifar, Serge, 1905-1986
Image from Wikimedia Commons
שושנה מורג - CC0 1.0
Morag, Shelomo, 1926-1999
Image from Wikimedia Commons
Qāsim, ʻAbd al-Ḥakīm