By Por Jaijongkit | The Colorado Sun
The tradition of hanging colored lights outside homes for Christmas originated in Denver in 1914 when a local electrician found a creative way to bring holiday cheer to his bedridden son.
David Dwight Sturgeon dipped lights in red and green paint, strung them on an electric wire, and hung them around a pine tree for his ailing son to admire from his bedroom window. Soon neighbors began making their own outdoor light displays, and Denver Post coverage helped spread the practice through the city.
While Sturgeon wasn’t the first person to display outdoor Christmas lights, the tradition he inspired in Denver is the first known instance of outdoor home Christmas lights becoming widespread in any city, according to History Colorado researchers.