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passage would be able to see IDraconis, the
then pole-star, at its lower culmination.[1]
It has been suggested that the passage was
made for this purpose. On other grounds
the date assigned to the Great Pyramid is
2123 B.C.
˜
(2) The ChaldAans gave names to con-
stellations now invisible from Babylon which
would have been visible in 2000 B.C., at
107
