Vietnamization (1969)Moon Landing (1969)Clean Air and Water Quality Improvement Act (1970)Occupational Safety and Health Act (1970)Environmental Protection Agency (1970)Cambodia Incursion (1970)SALT I (1972)Watergate (1972)Paris Peace Accords (1973)Resignation (1974)Nixon's Presidency TimelineVietnamization (1969)Moon Landing (1969)Clean Air and Water Quality Improvement Act (1970)Occupational Safety and Health Act (1970)Environmental Protection Agency (1970)Cambodia Incursion (1970)SALT I (1972)Watergate (1972)Paris Peace Accords (1973)Resignation (1974)