jul 6, 1666 - On 3 Muharram 1077 AH on the Muslim calendar, Sa'd ibn Zayd, a descendant of Hasan ibn Ali and of Muhammad (founder of Islam) becomes the new Sharif of Mecca, in modern-day Saudi Arabia. His ascension to the post follows the death of his father, Zayd ibn Muhsin, who had been the Sharif since 1631