The New International Encyclopædia…
“ In 1836, near the best anchorage and three miles northeast of the mission, a small trading village, Yerba Buena, was founded, and from it the modern city really developed. In 1846 the United States took possession; and in the following year, its population then being 450, Yerba Buena exchanged its old name for that of the mission and the bay. On the discovery of gold in California in 1848 people of every social stratum and of many nationalities flocked hither, and the population of San Francisco increased with tremendous rapidity. ”
