Located near the northeastern end of the San Francisco Peninsula, between the Presidio of San Francisco and the Mission San Francisco de Asis, was a Spanish settlement, Yerba Buena. This settlement was originally established as a trading post for ships visiting the Bay area. Yerba Buena grew to become the great city of San Francisco. The Alcalde or mayor of Yerba Buena issued a proclamation renaming the town San Francisco on January 30, 1847. In 1848 the population of the newly-named town of San Francisco was about 1,000.