On this day in 1813, Uncle Sam was born. Uncle Sam, a real person, was a straight up mack daddy pimp squad deluxe master. Ok, that's a bit of a stretch, but he was a real guy (YES, there was a real Uncle Sam).
After the war of 1812 the U.S. became known as "Uncle Sam" thanks to barrels of beef shipped to troops labeled "U.S." from Sam Wilson. Troops called them "Uncle Sam's food".
Samuel Wilson was a meatpacker from Troy, New York who supplied rations for American soldiers during the War of 1812. There was a requirement at the time for contractors to stamp their name and where the rations came from onto the food they were sending.
Wilson's packages were labeled "E.A – US."
When someone asked what that stood for, a co-worker jokingly said, "Elbert Anderson [the contractor] and Uncle Sam," referring to Wilson, though the "US" actually stood for United States.