Singing Christmas Tree upon the location. Since then, the singing Christmas tree concept has spread to Canada, the Philippines, South Korea, Switzerland and Sri Lanka. The most attended tree takes place in Knoxville, Tennessee, with 60,000 attendees in 2007. The first Christmas trees came to the United States in the 1740s from Moravian (now part of the Czech Republic) settlers. In 1851, the first commercial tree lot in the United States was set up in New York City. President of the United States Franklin Pierce set up the first Christmas tree in the White House in 1856. Artificial trees were first developed in
Christmas in the post-war United States White House. On Christmas Eve, President Calvin Coolidge lit the 2,500 red, white and green electric bulbs on the tree. In 1941, President Franklin Delano Roosevelt had the tree moved from the Ellipse to the White House grounds, where it remained until 1954 when it was returned to the Ellipse. In 1946, the lighting ceremony became a televised event, though not with widespread telecast. From 1948 to 1951, President Harry S. Truman signalled the lighting of the tree by remote control from his Independence, Missouri home, but in 1952, he stayed at the White House for the lighting ceremony. In