Richard Nixon was the 37th president of the United States. He served as president from January 20, 1969, until his resignation on August 9, 1974. Nixon is notable for being the only U.S. president to resign from office, which he did as a result of the Watergate scandal. His presidency included significant events such as the reduction of U.S. involvement in the Vietnam War, improved relations with the Soviet Union and China, the Apollo 11 Moon landing, and establishment of agencies like the Environmental Protection Agency. Nixon's second term ended early with his resignation in 1974 amid mounting pressure from the Watergate investigations.