The Celts were a collection of tribes with origins in central Europe that shared a similar language, religious beliefs, traditions and culture. It’s believed that the Celtic culture started to evolve as early as 1200 B.C. The Celts spread throughout western Europe—including Britain, Ireland, France and Spain—via migration. Their legacy remains most prominent in Ireland and Great Britain, where traces of their language and culture are still prominent today.

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By the third century B.C., the Celts controlled much of the European continent north of the Alps mountain range, including present-day Ireland and Great Britain.

When Christianity arrived in Ireland with St. Patrick in 432 A.D., many Celtic traditions were incorporated into the “new” religion. In fact, it’s said by some historians that Catholicism was able to take over as the dominant religion on the island following the mass killing of Druids, the religious leaders of the Gaels. Even with Christianity’s new-found prominence, traces of Celtic culture remain.

اصلا حتى لو تبحث عن رأي المسيحيين(المتدينين) في الهالوين بتلقى بعضهم ضده لانه اصل الاحتفال ما يتماشى مع اعتقادهم ويعذرون للي يحتفلون فيه بانهم 'يغيرون اصله ليتماشى مع اعتقادهم'.