Christmas was not declared a federal holiday in the United States until June 26, 1870. During the Middle Ages, Christmas celebrations were rowdy and raucous. The contemporary Santa Claus figure was born in the United States in the 19th century, influenced by artists, writers and evolving American culture. Santa Claus was first depicted as wearing a red suit and living at the North Pole in 1863. Rudolph the red-nosed reindeer was created in 1939 as part of an advertising campaign. The use of Christmas trees began in Germany and has since spread globally with the help of Christmas lights. Christmas traditions vary widely around the world and within different regions of the United States.