Richard Nixon wears a hard hat and speaks with a worker while visiting the Bethleham Steel plant in San Francisco, California

Richard Nixon was elected the 37th President of the United States (1969-1974) after previously serving as a U.S. Representative and a U.S. Senator from California. After successfully ending American fighting in Vietnam and improving international relations with the U.S.S.R. and China, he became the only President to ever resign the office, as a result of the Watergate scandal. "People have got to know whether or not their president is a crook. Well, I'm not a crook. I earned everything I've got."

Originally a Spanish (later Mexican) mission and pueblo, it was conquered by the United States in 1846 and by an invading army of prospectors following the 1848 discovery of gold in its hinterland. The Gold Rush made San Francisco a cosmopolitan metropolis with a frontier edge. In early 1900s the city tried to remake itself into a grand and modern Paris of the West.