The distribution of phone books has been targeted by environmentalists and others in much of the world: This Flickr photo from Australia has a caption mocking paper phone books.
Soldiers lie sick with Spanish influenza at Fort Riley, Kansas. The virus would claim the lives of 50 million people, 3 percent of the world's population at the time.
Psychiatrist Nassir Ghaemi explains why a mentally ill president may be just what we need, and how mania and depression have driven the triumphs and the tragedies of Lincoln, Churchill, Hitler, JFK...
