Male circumcision was common among the ancient Egyptians, boys being circumcised in groups when they reached puberty. See “Circumcision—Who Did It, Who Didn’t and Why,” BAR 20:04, and C. de Wit, “La Circoncision chez les anciens Egyptiens,” Zeitschrift für Ägyptische Sprache und Altertumskunde 90 (1972), pp. 41–48, and more recently, W. Westendorf, “Noch einmal: Das Wort ‘m‘.”