Monoeci Portus or Portus Herculis is frequently mentioned by the later Latin writers.
Although his data were the proper motions of only seven stars, he indicated a point near X Herculis not very far from that found by modern researches.
The site of the Samnite city, which in the 4th century B.C. had a coinage of its own, is not known; the Roman town lay in the valley of the Vulturnus, and its walls (4th century) enclose a circuit of 12 m., in which are preserved remains of large baths (Thermae Herculis) and a theatre.
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