In 1939, Franklin Roosevelt changed the date of Thanksgiving from the last Thursday in November to the second-to-last, according to the US National Archives.
The change was made in an attempt to lift the economy during the Great Depression, the idea being that it would give people more time to shop for Christmas.
But it ended up making everybody confused. Most states held Thanksgiving on its original date, and three states — Colorado, Mississippi, and Texas — celebrated the holiday in both weeks, according to the Wall Street Journal.
It caused such a public outcry that people began referring to it as "Franksgiving." After two years, Congress ditched the new policy and set the fourth Thursday of November as the legal holiday.