As you can see below, Thanksgiving Day has been moved aboutconsiderably, and for different reasons. When Roosevelt proposed moving he date, the Republicans accused him of insulting ABRAHAM LINCOLN, not their deity because the holiday was established by Lincoln, not a church
1939 to 1941
Abraham Lincoln’s successors as president followed his example of annually declaring the final Thursday in November to be Thanksgiving. But in 1939, President Franklin D. Roosevelt broke with this tradition.[18] November had five Thursdays that year (instead of the usual four), and Roosevelt declared the fourth Thursday as Thanksgiving rather than the fifth one. Although many popular histories state otherwise, he made clear that his plan was to establish the holiday on the next-to-last Thursday in the month instead of the last one. With the country still in the midst of The Great Depression, Roosevelt thought an earlier Thanksgiving would give merchants a longer period to sell goods before Christmas. Increasing profits and spending during this period, Roosevelt hoped, would help bring the country out of the Depression. At the time, advertising goods for Christmas before Thanksgiving was considered inappropriate. Fred Lazarus, Jr., founder of the Federated Department Stores (later Macy’s), is credited with convincing Roosevelt to push Thanksgiving back a week to expand the shopping season.[19]
Republicans decried the change, calling it an affront to the memory of Lincoln. People began referring to Nov. 30 as the “Republican Thanksgiving” and Nov. 23 as the “Democratic Thanksgiving” or “Franksgiving”.[20] Regardless of the politics, many localities had made a tradition of celebrating on the last Thursday, and many football teams had a tradition of playing their final games of the season on Thanksgiving; with their schedules set well in advance, they could not change. Since a presidential declaration of Thanksgiving Day was not legally binding, Roosevelt’s change was widely disregarded. Twenty-three states went along with Roosevelt’s recommendation, 22 did not, and some, like Texas, could not decide and took both days as government holidays.
In 1940 and 1941, years in which November had four Thursdays, Roosevelt declared the third one as Thanksgiving. As in 1939, some states went along with the change while others retained the traditional last-Thursday date.
1942 to present
President Truman receiving a Thanksgiving turkey from members of the Poultry and Egg National Board and other representatives of the turkey industry, outside the White House. (November 16, 1949)On October 6, 1941, both houses of the U.S. Congress passed a joint resolution fixing the traditional last-Thursday date for the holiday beginning in 1942. However, in December of that year the Senate passed an amendment to the resolution that split the difference by requiring that Thanksgiving be observed annually on the fourth Thursday of November, which was sometimes the last Thursday and sometimes (less frequently) the next to last.[21] On December 26, 1941 President Roosevelt signed this bill, for the first time making the date of Thanksgiving a matter of federal law.