“I want you to glance into this old closet.”He presses a button and opens the closet door to reveal … a Christmas tree. Well, the Roosevelts didn’t typically have a Christmas tree, because—according to legend, anyway—Theodore Roosevelt, avid conservationist, had banned them. The same held true for the Executive Mansion: Christmas trees wouldn’t become an integral part of the holiday celebration there until the 1920s. Theodore Roosevelt’s ban on Christmas trees even made it onto an episode of Drunk History. Christmas tree farming practices are sustainable, and the trees do a lot for the environment before they’re cut down.