The Roman History · Amm. 20.3.5

But if they are exactly in the knots which form the points of intersection between the ascending and descending path of the moon, then the sky will be covered with denser darkness, and the whole atmosphere becomes so thick that we cannot see what is close to us.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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