It occurs when multiple ethnicities inhabit a given area, specifically through means of immigration, intermarriage, trade, conquest and post-war land-divisions.
[11][12] In 1985, Canadian historian William H. McNeill gave a series of three lectures on polyethnicity in ancient and modern cultures at the University of Toronto.
[15] The idea of nationalism being social instead of ethnic entails a variety of culture, a shared sense of identity and a community not based on descent.
[18] The following nations and regions are just a few specific examples of this dilemma and its effects: The United States is a nation founded by different ethnicities frequently described as coming together in a "melting pot," a term used to emphasize the degree to which constituent groups influence and are influenced by each other, or a "salad bowl," a term more recently coined in contrast to the "melting pot" metaphor and emphasizing those groups' retention of fundamentally distinct identities despite their proximity to each other and their influence on the overall culture that all of those groups inhabit.
[20] Many immigrants have come from Hispanic America, who are native Spanish speakers, in the past centuries and have become a significant minority and even a majority in many areas of the Southwest.
[20][23][24] It has evolved into an ethnic conflict between the pluralists who support bilingualism and linguistic access and the assimilationists who strongly oppose this and lead the official English movement.
[28] The politics in Quebec are largely defined by nationalism as French Québécois wish to gain independence from Canada as a whole, based on ethnic and linguistic boundaries.
[31] The divide between the Dutch-speaking north (Flanders) and the French-speaking South (Wallonia) has caused the parliamentary democracy to become ethnically polarized.
[34][35] The diverse population and the rural areas throughout the nation made it nearly impossible to create a strong centralized state, but it was eventually accomplished through political evolution.
[36] Prior to 1974, nationalism was discussed only within radical student groups, but by the late 20th century, the issue had come to the forefront of political debate.
[43] In Southeast Asia the continental area (Myanmar, Thailand, Laos, Cambodia and Vietnam) generally practices Theravada or Mahayana Buddhism.
[45] The rest of the insular region (Philippines and East Timor) practices mostly Roman Catholic Christianity and Singapore practises mostly Mahayana Buddhism.
Wilmot Robertson in The Ethnostate and Dennis L. Thomson in The Political Demands of Isolated Indian Bands in British Columbia, argue for some level of separatism.
[52] In The Political Demands of Isolated Indian Bands in British Columbia, Thomson points out the benefits in some level (albeit small) of separatist policies.
[12] He argues the benefits of allowing ethnic groups, like the Amish and the Hutterites in the United States and Canada or the Sami in Norway, to live on the edges of governance.