The Catholic Origins of Halloween

FTA: “The origins of Halloween are, in fact, very Christian and rather American. Halloween falls on October 31 because of a pope, and its observances are the result of medieval Catholic piety.It’s true that the ancient Celts of Ireland and Britain celebrated a minor festival on October 31–as they did on the last day of most other months of the year. However, Halloween falls on the last day of October because the Solemnity of All Saints, or “All Hallows,” falls on November 1.”

Source: The Catholic Origins of Halloween