Trafalgar Square Authority in conjunction with the charity Unicef, who began ticketing the event to control crowd numbers. A Christmas ceremony has been held in the square every year since 1947. A Norway spruce (or sometimes a fir) is presented by Norway's capital city, Oslo as London's Christmas tree, a token of gratitude for Britain's support during World War II. (Besides war-time support, Norway's Prince Olav and the country's government lived in exile in London throughout the war.) The Christmas tree is decorated with lights that are switched on at a seasonal ceremony. It is usually held twelve days before Christmas Day.
Christmas tree (drag racing) the development of the Christmas Tree, which was debuted by Chrondek at the 1963 U.S. Nationals in Indianapolis, Indiana. Another claim regarding invention of the Christmas Tree is by Wilfred H. "W.H." David, Jr., founder of the Pel State Timing Association in Lafayette, Louisiana. He created the first Christmas Tree sometime in the late 1950s and sold the rights a few years later to Chrondek Corporation for mass production. The naming apparently came from the use of small glass Christmas tree lights David used for his miniature prototype. Regardless of the actual inventor(s), the Christmas Tree and timing system is