04/11/201720171105"An hour of historical reporting told by the people who were there.

The German monk who began a religious uprising; the book that made us think of humans as animals; how the murder of a Brazilian journalist by the secret police became a symbol of Brazil's military brutality; plus the Lebanese architectural dream that was overtaken by war and the fight that ended sex censorship online.

Photo: A portrait of Martin Luther by Lucas Cranach the Elder on display at the German Historical Museum in Berlin, Germany (Sean Gallup/Getty Images)