How a 1950s drug helped revolutionise the treatment of mental illness. Also, how hundreds of thousands of Kosovans fled when NATO bombed former Yugoslavia. Plus, a monumental public artwork in post-Cold War Berlin, Chinese-American relations after WW2, and a trailblazing same sex wedding in the 1970s.

Photo: Nurses prepare a patient for electric shock treatment in a psychiatric hospital. (Hulton-Deutsch Collection/CORBIS/Getty Images)