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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 ... B.Publication Date: 1953ISBN: 978-0-87661-201-9Volume: 1 Presented in catalogue form are 64 portrait heads, headless torsos, and fragments (of both categories) ranging in date from the first half of the 1st century B.C. to the 5th century A.D. ... The earliest church on the site, built over a wall of the 5th-century B.C. ... The earliest physical remains are those of an Archaic altar; some rubble structures may have been hastily built by refugees during the Peloponnesian War.