Final answer:
The timeline leading to President Nixon's resignation includes the Watergate break-in, the Saturday Night Massacre, and Nixon's resignation.
Explanation:
Timeline of Events Leading to President Nixon's Resignation:
- June 17, 1972: Watergate break-in by Nixon's Committee for the Re-Election of the President (CREEP).
- October 20, 1973: Saturday Night Massacre where Nixon ordered the firing of the special prosecutor.
- August 9, 1974: Nixon resigns before the House votes on impeachment.
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