1858 – The first electric burglar alarm was installed in Boston, MA.
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.
And this week in 2011 – Space Shuttle Discovery lifted off for its final mission. Upon touchdown at the Kennedy Space center, the shuttle was retired and is now on display in Virginia.