Religion in Italy Religion in Italy Religion in Italy is characterised by the predominance of Christianity and an increasing diversity of religious practices, beliefs and denominations. Most Christians in Italy adhere to the Catholic Church, whose headquarters are in Vatican City, Rome. According to the 2012 "Global Religious Landscape" survey by the Pew Forum on Religion and Public Life (an American think tank), 83.3% of Italy's residents are Christians, 12.4% are irreligious, atheist or agnostic, 3.7% are Muslims and 0.6% adhere to other religions. Other sources give different accounts of Italy's Islamic population, usually around 2%. According to other sources, up to 10%
Portuguese people Portuguese people Portuguese people are a Romance ethnic group indigenous to Portugal that share a common Portuguese culture and speak Portuguese. Their predominant religion is Christianity, mainly Roman Catholicism, though vast segments of the population, especially the younger generations, have no religious affiliation. Historically, the Portuguese people's heritage includes the pre-Celts and Celts (Celtiberians, Lusitanians, Gallaecians, Oestriminis, Turduli and Celtici) - from whom the majority of the population descends. Then the Romans, Greeks, Scandinavians, migratory Germanic tribes like the Suebi, Vandals, Visigoths (Western Goths) and Buri who settled in what is today's Portugal The Roman Republic conquered the Iberian Peninsula