Seven men form an unbroken series from the creation down to our own
time. Methuselah saw Adam, Shem saw Methuselah, Jacob saw Shem, Amram
saw Jacob, and Ahijah the Shilonite saw Amram, and Ahijah was seen by
Elijah, who is alive to this day.
THE TALMUD, _Bava Bathra_, fol. 121, col. 2.