It is not known when the monastery at Psalmodi was founded, but the evidence for intensive occupation beginning around the middle of the fifth century AD would suggest that as a possible date. However, there is also evidence for earlier, less intensive use of the site, stretching back at least to the early Bronze Age.
Almost all of this material has been found as small, often eroded fragments redeposited in later contexts, so at present little can be said about the nature of the occupation or use of the site in these earlier periods.
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Prehistoric pottery and chipped flint have been found sporadically in various locations, mostly redeposited but in one area in an apparent alluvial deposit that may be of prehistoric or protohistoric date. The pottery consists mostly of body sherds, with only a few clearly datable diagnostics. Prehistoric fabrics in this region have not been studied in detail; the wide variety at Psalmodi suggests that closer study may produce useful information. Tempering materials include calcite grit, quartz/mixed grit, calcite and shell, and quartz/mixed sand; surface treatments include plain, burnished, heavily burnished, smudged, and comb-impressed; firing varies from fully oxidized to fully reduced.
Some Greek and Roman imports are contemporary with Iron Age use of the site. These include Massaliot amphoras and painted ware from the Greek colony at Marseille and Campanian A tableware and "black sand" amphoras from Central Italy.
Use of the site in Early Imperial times is demonstrated by a variety of ceramic finds, generally to be dated between the late 1st and late 3rd centuries AD. So far nothing definitely from the late 1st century BC or early 1st century AD, such as Italian sigillata or early thin-walled types, has been found.
Wares present include South Gaulish sigillata, thin-walled cups, African Red Slip chiara A, African Red Slip cookware, Claire B sigillata, and Gauloise amphora, as well as regional commonwares such as "commune sableuse de Languedoc oriental" and "commune à engobe micacée".