African Americans [ ... ] are a racially mixed or mulatto people—deeply and overwhelmingly so" (see genetics). After the Emancipation Proclamation, Chinese American men married African-American women in high proportions to their total marriage numbers due to few Chinese American women being in the United States. African slaves and their descendants have also had a history of cultural exchange and intermarriage with Native Americans, although they did not necessarily retain social, cultural or linguistic ties to Native peoples. There are also increasing intermarriages and offspring between non-Hispanic blacks and Hispanics of any race, especially between Puerto Ricans and African Americans (American-born blacks).
Dutch Americans settlers from those countries arrived since the 1850s after California had statehood. They drained away swamps and created artificial islands known as polders, constructed dikes to back away the Sacramento and San Joaquin Rivers flowing into the San Francisco Bay, also turned them into fertile farmlands and set up inland ports such as Stockton. Also their communities like Lathrop, Galt, Rio Vista and French Camp which were named for Belgians from Belgium are of both French (Walloon) or Flemish origin. Not included among Dutch Americans are the Pennsylvania Dutch, a group of German Americans who settled in Pennsylvania in the