 Similar calculations are found in the early and later Middle Ages, and to them, the dates of the feast of the Annunciation and of Christmas owe their origin.Consequently the ancient martyrologies assign to the 25th of March the creation of Adam and the crucifixion of Jesus; also, the fall of Lucifer, the passing of Israel through the Red Sea and the immolation of Isaac.The Medieval "Golden Legend" identifies 25 March as not only the date of Creation and Annunciation, but also a large number of other significant events in salvation history, including Good Friday of Christ's crucifixion and death.