Colonial French was the predominant language of Louisiana during the French colonial period and was spoken primarily by the white/white creole settlers; the &lt;a href="Louisiana%20Creole%20people"&gt;black/black creole&lt;/a&gt; population spoke mostly creole. Cajun French was only introduced in Louisiana after the Great Upheaval of Acadians from Canada during 1710-1763. The Cajun people and culture (hence the Cajun language as well) did not appear immediately but was rather a slow evolution from the original Acadian culture with influences from local cultures. English and its associated dialects became predominant only after the Louisiana Purchase and even then it still retained some French influences as seen with Cajun English. Cajun French and Colonial French have somewhat merged since English took over.