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Monographs Excavations in the civic and cultural center of classical Athens began in 1931 and have continued almost without interruption to the present day. The first Athenian Agora volumes presenting ... Mint and the foundations of the Roman Nymphaeum, is here dated to the last quarter of the 10th century on the basis of its plan and details. ... Finally in 1876-1882 (Period IV) the west end was again rebuilt and the last vestiges of the west apse removed. ... About 300 B.C., these were replaced by an imposing structure, the Square Peristyle, which could have housed four lawcourts simultaneously, each with a jury of 500.