On March 13, 1881, revolutionaries assassinated Russian Tsar Alexander II. The terrorist organization Narodnaya Volya (People's Will) hoped to spark a revolution by assassinating the monarch. Instead, Alexander II's assassination led to a repressive backlash from his successor, Alexander III. Read an account of the assassination of Tsar Alexander II by anarchist revolutionary Peter Kropotkin.

On March 13, 1925, Tennessee passed a law banning the teaching of evolution in schools. The violation of this law by a local schoolteacher resulted in the famous "Scopes Monkey Trial." Learn more about The State v. John Scopes.