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109 AD: Improvement of the water supply of Rome under Trajan
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Oricalchum sestertius (24.4g, 33mm, 6h) Rome mint. Struck AD 110.
IMP CAES NERVAE TRAIANO AVG GER DAC PM TR P COS V P P laureate head of Trajan right
AQVA / TRAIANA [in ex.] SPQR OPTIMO PRINCIPI [around edge] S C [left and right in ex.] River god reclining l. in arched grotto supported by two columns; left arm resting on urn; reed in right hand.
RIC 463 [S]; Cohen 20; Foss (Roman Historical Coins) 103:53
This type celebrates the construction of the Aqua Traiana which was dedicated on 20 June 109 constructed to improve the water supply of Rome. A branch of the Anio Novus was carried over the valley between the Caelian and the Aventine.
A lofty arcade was built upon the 'agger' of Servilius Tullius and passing over the Via Appia and the Porta Capena to the Piscina Publica. Terra-cotta water pipes with the name of Trajan and a leaden pipe inscribed AQVA TRAIANA have been found in excavations.
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