
What's the first foreign community to establish their group in Los Angeles
The Hispanics and Latinos which is the largest community in Los Angeles is also the first community to establish in the county. The Los Angeles is one of the places in America where the earliest Spanish settlements ever recorded. This is probably one of the reason also why the Hispanics and Latinos is the community which dominates Los Angeles besides white American.
http://en.wikipedia.org/wiki/Hispanic_and_Latino_Americans#History
As proof the Los Angeles Plaza Historic District is one of the oldest districts which were built under the Spanish reign 1781-1821. There are some establishment there that are still functioning like the city Plaza which was use to be the center of the city. The La Placita Church still held mass for its devotees.
http://en.wikipedia.org/wiki/Los_Angeles_Plaza_Historic_District

