Richard Nixon was the 37th President of the United States, serving from 1969 to 1974. He is known for his foreign policy achievements, including the historic visit to China in 1972 and the signing of the Strategic Arms Limitation Treaty (SALT) with the Soviet Union. Nixon's presidency also focused on domestic issues, such as the establishment of the Environmental Protection Agency. However, Nixon's time in office was marred by the Watergate scandal, which involved a break-in at the Democratic National Committee headquarters and subsequent cover-up efforts. This scandal ultimately led to his resignation in 1974, making him the first U.S. president to do so.