Edward Ord
California's new military governor Bennett C. Riley ruled that land could not be sold that was not on a city map. In 1849, Lieutenant Edward Ord surveyed Los Angeles to confirm and extend the streets of the city. His survey put the city into the real-estate business, creating its first real-estate boom and filling its treasury. Street names were changed from Spanish to English. Further surveys and street plans replaced the original plan for the pueblo with a new civic center south of the Plaza and a new use of space.