December 10, 1988 A devastating 6.9-magnitude earthquake kills an estimated 25,000 people in Armenia.

December 11, 1941 Germany and Italy declare war on the United States. The US responds in kind.

December 12, 1969 Bombs explode in Milan and Rome, Italy. At least 16 people are killed and more than 100 injured in the incidents known as the Piazza Fontana Slaughter.

December 13, 1937 The Japanese army occupies Nanking, China. Japanese soldi