Multiculturalism

Multiculturalism is the acceptance or promotion of multiple ethnic cultures, for practical reasons and/or for the sake of diversity and applied to the demographic make-up of a specific place, usually at the organizational level, e.g. schools, businesses, neighborhoods, cities or nations. In this context, multiculturalists advocate extending equitable status to distinct ethnic and religious groups without promoting any specific ethnic, religious, and/or cultural community values as central.
The policy of multiculturalism is often contrasted with the concepts assimilationism and social integration.

in http://en.wikipedia.org/wiki/Multiculturalism