<P> Since 1953, the president and vice president have been guests of honor at a luncheon held by the leadership of the United States Congress immediately following the inaugural ceremony . The luncheon is held in Statuary Hall and is organized by the Joint Congressional Committee on Inaugural Ceremonies, and attended by the leadership of both houses of Congress as well as guests of the president and vice president . By tradition, the outgoing president and vice president do not attend . </P> <P> Following the arrival of the presidential entourage to the White House, it is customary for the president, vice-president, their respective families and leading members of the government and military to review an inaugural parade from an enclosed stand at the edge of the North Lawn, a custom begun by James Garfield in 1881 . The parade, which proceeds along the 1.5 miles of Pennsylvania Avenue in front of the stand and the Front Lawn in view of the presidential party, features both military and civilian participants from all 50 states and the District of Columbia; this parade largely evolved from the post-inaugural procession to the White House, and occurred as far back as Jefferson's second inauguration in 1805, when workers from the Washington Navy Yard, accompanied by military music, marched with the president on foot as he rode on horseback from the Capitol to the White House . By the time of William Henry Harrison's inauguration in 1841, political clubs and marching societies would regularly travel to Washington for the parade . That year was also the first in which floats were part of the parade . It was at Lincoln's second inauguration, in 1865, that Native Americans and African Americans participated in the inaugural parade for the first time . Women were involved for the first time in 1917 . </P> <P> In 1829, following his first inaugural parade, Andrew Jackson held a public reception at the White House, during which 20,000 people created such a crush that Jackson had to escape through a window . Nevertheless, White House receptions continued until lengthy afternoon parades created scheduling problems . Reviving the idea in 1989, President George H.W. Bush invited the public to a "White House American Welcome" on the day after the inaugural . </P> <P> Grover Cleveland's 1885 inaugural parade lasted three hours and showcased 25,000 marchers . Eighty years later, Lyndon Johnson's parade included 52 select bands . Dwight D. Eisenhower's 1953 parade included about 22,000 service men and women and 5,000 civilians, which included 50 state and organization floats costing $100,000 . There were also 65 musical units, 350 horses, 3 elephants, an Alaskan dog team, and the 280 - millimeter atomic cannon . </P>

When did the term potus come into use