1802
President Thomas Jeffersono became acquainted with french fries while serving as American ambassador in Paris. In 1802, he asked that "potatoes served in the French manner" be served at a White House dinner.
Source: Daily Telegraph (London), 4/24/2004

3 to 1
As of August 2005, a small order of Burger King fries contained 410 milligrams of sodium compared to a small order of McDonalds fries, which contained 140 milligrams of sodium.
Source: Wall Street Journal, 8/17/2005