Aspects of Northern Irish migration to America:  definitions and directions.
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D000569:Americas; D002410:Catholicism; D002835:Christianity; D003469:Culture; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004641:Emigration and Immigration; D005006:Ethnicity; D005060:Europe; D007494:Ireland; D009656:North America; D009660:Northern Ireland; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012067:Religion; D012922:Social Change; D012942:Social Sciences; D014171:Transients and Migrants; D006113:United Kingdom
Americas; Catholicism; Christianity; Cultural Background; Demographic Factors; Demography; Developed Countries; Developing Countries; Ethnic Groups; Europe; Historical Demography; Historical Survey; International Migration; Ireland; Migrants; Migration; North America; Northern America; Northern Europe; Northern Ireland; Population; Population Characteristics; Population Dynamics; Protestantism; Religion; Social Change; Social Sciences; United Kingdom