This is a true story and something that really happened in history. You can google it. The year was 1939 and Franklin Delano Roosevelt decided due to the economy and the Great Depression, he would move Thanksgiving to allow for more shopping time.

From 1939-1941 there was confusion about when to celebrate Thanksgiving, with some celebrating traditional Thanksgiving. So some places had 2  days of thanks.

This podcast explains how Thanksgiving got to be on the week it is every month. And gives a little history lesson into "Franksgiving" as it was deemed. Of course, this unique and odd situation was fodder for comedians everywhere. Including radio comedians and even feature films making reference to the chaos.