The inauguration of John Adams as the second president of the United States was held on Saturday, March 4, 1797, in the House of Representatives Chamber of Congress Hall in Philadelphia, Pennsylvania. The inauguration marked the commencement of the only four-year term of John Adams as president and of Thomas Jefferson as vice president. The presidential oath of office was administered to John Adams by Chief Justice Oliver Ellsworth. Adams was the first president to receive the oath of office from a Chief Justice of the United States, and the first head of state to peacefully and legally succeed to office from a living predecessor since Louis I of Spain in 1724.