Fourth inauguration of Franklin D. Roosevelt
The fourth inauguration of Franklin D. Roosevelt as president of the United States was held on Saturday, January 20, 1945. This was the 40th inauguration and marked the commencement of the fourth and final term of Roosevelt as president and the only term of Harry S. Truman as vice president.
Source: Wikipedia — Fourth inauguration of Franklin D. Roosevelt (CC BY-SA 4.0)