Rockefeller Center Christmas Tree Rockefeller Center Christmas Tree The Rockefeller Center Christmas Tree is a large Christmas tree placed annually in Rockefeller Center, in Midtown Manhattan. The tree is erected in mid November and lit in a public ceremony in late November or early December. Since 1997, the lighting has been broadcast live, to hundreds of millions, on NBC's "Christmas in Rockefeller Center" telecast on a Wednesday after Thanksgiving. The broadcast features live entertainment and a tree lighting ceremony, where the tree is lit by the current Mayor of New York City and special guests. An estimated 125 million people visit the attraction each
Rockefeller University Rockefeller Hospital's first director Rufus Cole retired in 1937 and was succeeded by Thomas Milton Rivers. As director of The Rockefeller Institute's virology laboratory, he established virology as an independent field apart from bacteriology. Notable figures to emerge from the institution include Alexis Carrel, Peyton Rous, Hideyo Noguchi, Thomas Milton Rivers, Richard Shope, Thomas Francis Jr, Oswald T. Avery, Rebecca Lancefield, Wendell Meredith Stanley, René Dubos, Ashton Carter, and Cornelius P. Rhoads. Others attained eminence before being drawn to the university. Joshua Lederberg, who won the Nobel Prize in Physiology or Medicine in 1958, served as president of the university