I'm watching The New Pope, a historical drama on Sky Atlantic here (in the UK). In the show, ostensibly about Catholicism, the women mostly wear head coverings similar to what my Syrian and Algerian aunts wear. My question is whether there's any concensus as to which direction the influence was in -- whether it went from Christianity to Islam, the other way around, or was the covering called for by the ancient culture of the Levant for women and is a relic of that?