There were 35 million prisoners of war held during World War II. One soldier's diary full of collages and drawings brings a human dimension to that number.
In May 1933, Nazi-led student groups organized public burnings of "un-German" books, including those held in the library of the Institute for Sexual Science.
The Russian Revolution promised—and for a time delivered—freedom to the peoples of the Tsarist Empire. That freedom ended with the creation of the USSR.
As Europeans recovered from the devastation of World War II, nude beaches appeared in France.