Lyndon Baines Johnson (August 27, 1908 – January 22, 1973), often referred to as LBJ, was an American politician who served as the 36th President of the United States from 1963 to 1969, assuming the office after serving as the 37th Vice President of the United States under President John F. Kennedy from 1961 to 1963.

Johnson's presidency took place during a healthy economy, with steady growth and low unemployment. Regarding the rest of the world, there were no serious controversies with major countries. Attention therefore focused on domestic policy, and, after 1966, on the Vietnam War.

Johnson was quickly sworn in as President on Air Force One in Dallas on November 22, 1963, just 2 hours and 8 minutes after John F. Kennedy was assassinated, amid suspicions of a conspiracy against the government. He was sworn in by U.S. District Judge Sarah T. Hughes, a family friend. In the rush, a Bible was not at hand, so Johnson took the oath of office using a Roman Catholic missal from President Kennedy's desk.

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