During the past half-century, whenever America's unemployment rate has risen by half a percentage point or more the NBER has later (often much later) declared it a recession.
When Spencer later installed a prototype microwave in the kitchen of a Raytheon director, the cook declared it was black magic and handed in her notice.
December 16, 1978: China and the US issued a joint communique which called for the establishment of diplomatic relations between the two countries on January 1, 1979.
Archaelogists in Iran have said they have uncovered what they believe is the world's oldest backgammon set, which could make the country the cradle of board games.
However, Mr Villaraigosa said he took full responsibility for breaking official protocol about declaring the gifts, which included complimentary tickets to the Oscars and baseball games.
Sidney Poitier officially opened the 59th Cannes Film Festival as the cast of "The Da Vinci Code" led a galaxy of stars bringing glitz and glamour to the French Riviera.
New York's Museum of Modern Art has announced an exhibition of projects that aim to tackle the issue of shelter for migration and global refugee emergencies.
Switzerland on the same day also announced a parallel investigation that will focus on the bidding process for the 2018 Russia and 2022 Qatar World Cup Finals.