1804 - The first self-propelled locomotive on rails was demonstrated in Wales.
1842 - John J. Greenough patented the sewing machine.
1858 - The first electric burglar alarm was installed in US.
1916 - During World War I, the Battle of Verdun began in France. The battle ended on December 18, 1916 with a French victory over Germany.
1947 - Edwin Land demonstrated the Polaroid Land Camera to the Optical Society of America in New York City. It was the first camera to take, develop and print a picture on photo paper all in about 60 seconds. The photos were black and white. The camera went on sale the following year.