Photos: Looking Back at John F. Kennedy's Life

Democratic presidential candidate John F. Kennedy campaigns in 1960.

President John F. Kennedy and first lady Jacqueline Kennedy arrive at the Capitol for the president's State of the Union message.

President John F. Kennedy aboard an elevator at the Capitol where he will deliver his State of the Union message. Among those with the president is his press secretary, Pierre Salinge, to the right of the president. A sign on the elevator reads, ""Exclusively for members and the press.""

President John F. Kennedy and first lady Jacqueline Kennedy depart Bogota, Columbia, at night.

President John F. Kennedy addresses members of the Peace Corps at the U.S. Chamber of Commerce Auditorium.

President John F. Kennedy works at his desk in the Oval Office.

President John F. Kennedy shakes hands with members of the Washington Senators and Detroit Tigers at Griffith Stadium in Washington, D.C., before he pitches out the first baseball of the season. Among those joining the president are House Minority Leader Charles Hallack (seated behind the president).

President John F. Kennedy pitches out the first baseball of the season for the opening game between the Washington Senators and the Detroit Tigers, at Griffith Stadium in Washington, D.C.

President John F. Kennedy and Mrs. Jacqueline Kennedy attend a dinner for the National Cultural Center in Washington, D.C.

President John F. Kennedy escorts President Roberto Chiari of Panama to the gate of the White House.

President John F. Kennedy speaks during a televised press conference, in the background at the podium and in the foreground on a TV monitor.

Posters and crowds in San Juan, Puerto Rico, welcome President John F. Kennedy on his South American trip. These include, ""Save Cuba,"" ""Your Visit to Latin America Provides a New Era of Mutual Understanding and Cooperation in the Hemisphere,"" ""With Kennedy and Munoz Marin in Quest of Progress and Social Justice for the World,"" ""Welcome Again Mister President. 15-1958. 15-1961,"" ""God Bless You Presidnet and Mrs. Kennedy"" & ""Kudos Senor Presidente.""

President John F. Kennedy inspects troops upon his arrival at the San Juan Airport in Puerto Rico, part of his South American trip.

President John F. Kennedy leaves the White House for Andrews Field to meet the two RB-47 fliers shot down by the Soviet Union in 1960 and released by the Soviet Union as a good-will gesture to the new administration.

JFK signs the Test Ban Treaty in the White House. Leaders of Congress are present.

President John F. Kennedy confers with an unidentified figure in his office in the Oval Office.

The flag flies at half mast over the White House following the announcement of the assassination of President John F. Kennedy. People mull in Lafayette Park, across the street from the White House. One person is holding a copy of the Washington News with the headline, "JFK is slain."

The body of the late President John F. Kennedy lies in state in the East Room of the White House.

A military honor guard stands at the Capitol Rotunda with the casket of President John F. Kennedy.

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Democratic presidential candidate John F. Kennedy campaigns in 1960. (USN&WR)

President John F. Kennedy and first lady Jacqueline Kennedy arrive at the Capitol for the president's State of the Union message. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy aboard an elevator at the Capitol where he will deliver his State of the Union message. Among those with the president is his press secretary, Pierre Salinge, to the right of the president. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy and first lady Jacqueline Kennedy depart Bogota, Columbia. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy addresses members of the Peace Corps at the U.S. Chamber of Commerce Auditorium. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy works at his desk in the Oval Office. (WARREN K. LEFFLER FOR USN&WR)

President John F. Kennedy shakes hands with members of the Washington Senators and Detroit Tigers at Griffith Stadium in Washington before he pitches out the first baseball of the season. Among those joining the president are House Minority Leader Charles Hallack (seated behind the president). (WARREN K. LEFFLER FOR USN&WR)

President John F. Kennedy pitches out the first baseball of the season for the opening game between the Washington Senators and the Detroit Tigers, at Griffith Stadium in Washington. (WARREN K. LEFFLER FOR USN&WR)

President John F. Kennedy and Mrs. Jacqueline Kennedy attend a dinner for the National Cultural Center in Washington. (WARREN K. LEFFLER FOR USN&WR)

President John F. Kennedy escorts President Roberto Chiari of Panama to the gate of the White House. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy speaks during a televised press conference. (MARION S. TRIKOSKO FOR USN&WR)

Posters and crowds in San Juan, Puerto Rico, welcome President John F. Kennedy on his South American trip in 1961. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy inspects troops upon his arrival at the San Juan Airport in Puerto Rico. (MARION S. TRIKOSKO FOR USN&WR)

President John F. Kennedy leaves the White House for Andrews Field to meet the two RB-47 fliers shot down by the Soviet Union in 1960 and released by the Soviet Union as a good-will gesture to the new administration. (WARREN K. LEFFLER FOR USN&WR)

President John F. Kennedy signs the Nuclear Test Ban Treaty in the White House in 1963 while leaders of Congress look on. (WARREN K. LEFFLER FOR USN&WR)

President John F. Kennedy confers with an unidentified figure in the Oval Office. (WARREN K. LEFFLER FOR USN&WR)

The flag flies at half mast over the White House following the announcement of the assassination of President John F. Kennedy. People mull in Lafayette Park, across the street from the White House. (WARREN K. LEFFLER FOR USN&WR)

The body of the late President John F. Kennedy lies in state in the East Room of the White House. (WARREN K. LEFFLER FOR USN&WR)

A military honor guard stands at the Capitol Rotunda with the casket of President John F. Kennedy. (MARION S. TRIKOSKO FOR USN&WR)