 Peter Krentz argues that "the ideology of hoplitic warfare as a ritualized contest developed not in the 7th century [BC], but only after 480, when non-hoplite arms began to be excluded from the phalanx".Anagnostis Agelarakis, based on recent archaeo-anthropological discoveries of the earliest monumental polyandrion (communal burial of male warriors) at Paros Island in Greece, unveils a last quarter of the 8th century BC date for a hoplitic phalangeal military organization.The rise and fall of hoplite warfare was tied to the rise and fall of the city-state.