On July 15

On this day in ...

... 1955, at a conference in Germany, 18 Nobel laureates signed the Mainau Declaration condemning the military use of nuclear weapons. Eventually more than 50 Nobelists would sign.

... 1979, U.S. President Jimmy Carter declared that America was suffering from a "crisis of confidence," particularly with regard to the then-current energy troubles. His recommendation that the country begin conserving were met with derision then. But it's enjoyed a revival in some circles during the energy crisis of today. See the full speech below.