The first state to make Christmas a state holiday was Alabama, in the 1830s. Interesting, considering the current argument that the Founders intended America to be a Christian government, that they did not determine one of the holiest Christian dates to be important enough to include as a holiday.
James K. Polk was the first president to put a Christmas tree up in the White House. See above.
I'm tired, halfway done with my International Environmental Law final, and ready for bed. I needed a break.