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Sextus Julius Frontinus (c. 40 – 103 AD) was one of the most distinguished Roman senators of the late 1st century AD. He is best known to the post-Classical world as an author of technical treatises, especially ''De aquaeductu'', dealing with the aqueducts of Rome. In 70 AD, he was ''praetor,'' and five years later was sent into Britain to succeed Quintus Petillius Cerialis as governor of that island. He subdued the Silures and other tribes of Wales hostile to Roman invasion, establishing a new base at Caerleon or Isca Augusta for Legio II ''Augusta'' and a network of smaller forts fifteen to twenty kilometres apart for his auxiliary units. One of these forts would have been Luentinum, which controlled the gold mine of Dolaucothi, worked by numerous aqueducts. He was succeeded by Gnaeus Julius Agricola in 78. Agricola was the father-in-law of the famous historian Tacitus. In 97, he was appointed Water Commissioner of the aqueducts (''curator aquarum'') at Rome by the emperor Nerva, an office only conferred upon persons of very high standing. He was also a member of the College of Augurs. He produced an official report on the state of the aqueducts serving the city of Rome towards the end of the 1st century AD, the first official report of an investigation about engineering works ever to have been published. In this capacity, he followed another distinguished Roman statesman, Agrippa, the friend, ally and son-in-law of Augustus, who organised in 34 BC a campaign of public repairs and improvements, including renovation of the aqueduct Aqua Marcia and an extension of its pipes to cover more of the city. ==Aqueducts of Rome== Frontinus's chief work is ''De aquaeductu'', in two books, an official report to the emperor on the state of the aqueducts of Rome. It presents a history and description of the water-supply of Rome, including the laws relating to its use and maintenance. He provides the history, sizes and discharge rates of all of the nine aqueducts of Rome at the time at which he was writing at the turn of the 1st century AD: the Aqua Marcia, Aqua Appia, Aqua Alsietina, Aqua Tepula, Anio Vetus, Anio Novus, Aqua Virgo, Aqua Claudia and Aqua Augusta . Frontinus describes the quality of water delivered by each, mainly depending on their source, be it river, lake, or spring. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Frontinus」の詳細全文を読む スポンサード リンク
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