21. Nazis barring Jews from the University of Vienna, 1938.
22. Rainy nights in London, 1899.
23. Grigoris Lambrakis, a Greek politician, doctor, athlete, and anti-war activist, during the 1st Marathon Peace March, 21 April 1963.
He was assassinated one month later by far-right extremists.
24. Police photographs of Vidkun Quisling, 1945.
25. A technician with trays of cell tissue for making measles vaccine, Terre Haute, Indiana, 1963.