In 1871, Johnson hired Edison, then a 24-year-old inventor ... put electric lights on the White House tree, and by 1914, a 16-foot string cost just $1.75. By the 1930s, colored bulbs and cones ...

If you celebrate Christmas ... now that LED holiday lights use a fraction of the electricity of standard incandescent lights. But it can be hard to let go of those old-fashioned lights, especially ...

Country people didn't have electricity when I was little, so we used to go to town to see the Christmas lights ... her for a walk under the old-fashioned strings of colored bulbs stretched ...