1952 Richard Nixon makes his "Checkers speech".
1968 United States presidential election, 1968: Republican Richard Nixon wins the American presidency, in what turned out to be a decades-long realignment election.
1969 Vietnam War: U.S. President Richard Nixon declares the Nixon Doctrine, stating that the United States now expects its Asian allies to take care of their own military defense. This is the start of the "Vietnamization" of the war.
1969 The ''Apollo 11'' astronauts are released from a three-week quarantine to enjoy a ticker-tape parade in New York. That evening, at a state dinner in Los Angeles, they are awarded the Presidential Medal of Freedom by U.S. President Richard Nixon.
1969 U.S. President Richard Nixon and Japanese Premier Eisaku Sato agree in Washington, D.C. on the return of Okinawa to Japanese control in 1972. Under the terms of the agreement, the U.S. is to retain its rights to bases on the island, but these are to be nuclear-free.
1970 President Richard Nixon signs the Public Health Cigarette Smoking Act into law, requiring the Surgeon General's warnings on tobacco products and banning cigarette advertisements on television and radio in the United States, starting on January 1, 1971.
1970 Richard Nixon delivers a special congressional message enunciating Native American Self-Determination as official US Indian policy, leading to the Indian Self-Determination Act.
1971 President Richard Nixon declares the U.S. War on Drugs.
1971 Right to vote: the Twenty-sixth Amendment to the United States Constitution, lowering the voting age from 21 to 18 years, is formally certified by President Richard Nixon.
1972 Vietnam War: President Richard Nixon announces that the United States will engage North Vietnam in Operation Linebacker II, a series of Christmas bombings, after peace talks collapsed with North Vietnam on the 13th.
1973 President Richard Nixon rejects an Appeals Court decision that he turn over the Watergate tapes.
1973 "Saturday Night Massacre": President Richard Nixon fires U.S. Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus after they refuse to fire Watergate special prosecutor Archibald Cox, who is finally fired by Robert Bork.
1974 United States President Richard Nixon refuses to hand over materials subpoenaed by the Senate Watergate Committee.
1974 10,000 march in Washington, D.C., calling for the impeachment of US President Richard Nixon
1974 U.S president Richard Nixon visits the U.S.S.R..
1974 Watergate scandal: the United States Supreme Court unanimously ruled that President Richard Nixon did not have the authority to withhold subpoenaed White House tapes and they order him to surrender the tapes to the Watergate special prosecutor.
1974 Watergate scandal: U.S. President Richard Nixon announces his resignation, effective the next day.