When the Dioscuri invaded Attica in search of their sister, the inhabitants of Deceleia informed the Lacedaemonians where Helen was concealed, and showed them the way to Aphidna.
[2][3][4] We learn, from a decree quoted by Demosthenes,[5] that Aphidna was, in his time, a fortified town, and at a greater distance than 120 stadia from Athens.
[10][11] The first Swedish fieldwork in Greece took place between June and August 1894 when archaeologist Sam Wide and Lennart Kjellberg excavated at Kalaureia.
One long trench from east to west revealed thirteen tombs, some of them unusually rich even though the southern part of the tumulus had been disturbed with only the lower strata remaining intact.
Forsén's theory is based on the similarities of construction with an EB II tumulus found on top of the earlier “House of the Tiles”, another archaeological site, at Lerna.
Some finds in the fill of the Aphidna tumulus, such as the spout of a zoomorphic clay rhyton (conical container from which fluids were intended to be drunk or to be poured), are also likely to date to the Early Bronze Age (EB).