In locations where a mosque has not replaced a church (as at the site of the patriarchs' graves in Hebron, or as at the site of Jesus' Ascension on the Mt. of Olives), we often find one built beside it, as at the Holy Sepulcher or in Bethlehem. Nazareth was once an exception, because it was an entirely Christian town until 1948. An influx of Muslim refugees during the war of that year set change afoot. Today the city is mostly Muslim, and a mosque is planned beside the Church of the Annunciation.