The Roman History · Amm. 27.4.5

But we see that the country now, the district being in the form of a crescent, resembles a splendid theatre; it is bounded on the west by mountains, on the abrupt summit of which are the thickly wooded passes of the Succi, which separate Thrace from Dacia.

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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