Creole peoples instance of ethnic group
Creole peoples are ethnic groups formed during the European colonial era, from the mass displacement of peoples brought into sustained contact with others from different linguistic and cultural backgrounds, who converged onto a colonial territory to which they had not previously belonged.Often involuntarily uprooted from their original home, the settlers were obliged to develop and creatively merge the desirable  elements from their diverse backgrounds, to produce new varieties of social, linguistic and cultural norms that superseded the prior forms.  This process, known as creolization, is characterized by rapid social flux regularized into Creole ethnogenesis. 
Creole peoples vary widely in ethnic background and mixture and many have since developed distinct ethnic identities. The development of creole languages is sometimes mistakenly attributed to the emergence of Creole ethnic identities; however, the two developments occur independently.Louisiana
In the United States, the words "Louisiana Creole" refers to people of any race or mixture thereof who are descended from colonial French La Louisiane and colonial Spanish Louisiana (New Spain) settlers before the Louisiana region became part of the United States in 1803 with the Louisiana Purchase. Both the word and the ethnic group derive from a similar usage, beginning in the Caribbean in the 16th century, which distinguished people born in the French, Spanish, and Portuguese colonies from the various new arrivals born in their respective, non-Caribbean homelands. Some writers from other parts of the country have mistakenly assumed the term to refer only to people of mixed racial descent, but this is not the traditional Louisiana usage.Portuguese Africa
Atlantic Creole is a term coined by historian Ira Berlin to describe a  group of people from Angola and Central Africa in the 16th and 17th centuries  with cultural or ethnic ties to Africa, Europe, and sometimes the Caribbean.  They often had Portuguese names and were sometimes mixed race. Their knowledge of different cultures made them skilled traders and negotiators, but some were enslaved and arrived in the Chesapeake Colonies as the Charter Generation of slaves during the Transatlantic Slave Trade before 1660.  The Crioulos of mixed Portuguese and African descent eventually gave rise to several major ethnic groups in Africa, especially in Cape Verde, Guinea-Bissau, São Tomé e Príncipe, Equatorial Guinea (especially Annobón Province), Ziguinchor (Casamance), Angola, Mozambique. Only a few of these groups have retained the name crioulo or variations of it:
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