1931: Construction workers put up the first tree on their muddy construction site.
1933: The first formal Tree Lighting Ceremony, with 700 lights, took place at the new RCA Building.
1936: Two 70-foot trees were lit and the new Ice Skating Pond featured the ceremony's first skating pageant.
1942: Three trees, red, white and blue, were erected to support the WWII troops abroad.
1966: The first tree from outside of the US was erected, dontated by Canada to celebrate the Centennial of its Confederation.
1999: The largest tree in history came from Killingworth, Connecticut.
2016 Rockefeller Tree Lighting
The Rockefeller Center Christmas Tree is a world-wide symbol of the holidays in New York City. The 2016 Rockefeller Center Christmas Tree will be lit for the first time on Wednesday, November 30, with live performances from 7–9pm, at Rockefeller Plaza, between West 48th and West 51st Streets and Fifth and Sixth Avenues. Thousands crowded the sidewalks for the event and millions watched it live across the globe. The Tree will remain lit and can be viewed until 9pm on January 7, 2017.