Christmas lights

During the medieval period, special candles were often lit at Christmas, symbolic of Jesus' role as the light of the world. The phenomena of the Christingle is also closely related.

The illuminated Christmas tree, which is considered by manyto be the start of the development of modern Christmas lighting traditions, became a Christmas tradition in during the Early Modern period. The illuminated Christmas tree became established in the during Queen Victoria's reign, and through emigration spread to North America and . Until the development of inexpensive electrical power in the mid nineteenth century, miniature candles were commonly (and in some cultures still are) used.  

The first known electrically illuminated Christmas tree was the creation of Edward H. Johnson, an associate of inventor Thomas Edison. While he was vice president of the Edison Electric Light Company, a predecessor of today's Con Edison electric utility, he had Christmas tree light bulbs especially made for him. He proudly displayed his Christmas tree, which was hand-wired with 80 red, white and blue electric incandescent light bulbs the size of walnuts, on December 22, 1882 at his home on

In 1895, U.S. President Grover Cleveland proudly sponsored the first electrically lit Christmas tree in the White House. It was a huge specimen, featuring more than a hundred multicolored lights. The first commercially produced Christmas tree lamps were manufactured in strings of multiples of eight sockets by the General Electric Co. of Harrison, New Jersey . Each socket took a miniature two-candela carbon-filament lamp.

From that point on, electrically illuminated Christmas trees, but only indoors, grew with mounting enthusiasm in the and elsewhere. San Diego in 1904 and New York City in 1912 were the first recorded instances of the use of Christmas lights outside. McAdenville North Carolina claims to have been the first in 1956. The Library of Congress credits the town for inventing "the tradition of decorating evergreen trees with Christmas lights dates back to 1956 when the McAdenville Men's Club conceived of the idea of decorating a few trees around the
McAdenville
Community Center ." However, the Rockefeller Center Christmas Tree has had "lights" since 1931, but did not have real electric lights until 1956. Furthermore, Philadelphia 's Christmas Light Show and Disney's Christmas Tree also began in 1956. Though General Electric sponsored community lighting competitions during the 1920s, it would take until the mid 1950s for the use of such lights to be adopted by average households.  

Over a period of time, strings of Christmas lights found their way into use in places other than Christmas trees. Soon, strings of lights adorned mantles and doorways inside homes, and ran along the rafters, roof lines, and porch railings of homes and businesses. In recent times, many city skyscrapers are decorated with long mostly-vertical strings of a common theme, and are activated simultaneously in Grand Illumination ceremonies.  

In the mid 2000s, the video of the home of Carson Williams was widely distributed on the internet as a viral video. It garnered national attention in 2005 from The Today Show on NBC, Inside Edition and the CBS Evening News and was featured in a Miller television commercial. Williams turned his hobby into a commercial venture, and was commissioned to scale up his vision to a scale of 250,000 lights at a Denver shopping center, as well as displays in parks and zoos.