Attica is an ancient region of Greece which includes Athens. Its early kings are mentioned by Plato (Critias 110 a-b)

“The Egyptian priests, in describing the war of that period, mentioned most of those names – such as those of Cecrops and Erechtheus and Erichthonius and Erisichthon and most of the other names which are recorded of the various heroes before Theseus.”

Building on that and the writings of Pausanias (Graeciae Descriptio 1,2,6) and Apollodorus (Bibliotheca 3.14.1)^(b), Stavros Marinopoulos has constructed an Attica king-list – Actaeus, Cecrops, Erysichthon, Cranaus (3.14.5), Erichthonius, Pandion, Erechtheus, Cecrops II, Pandion II, Aegeus and Theseus^(a). Although some disagree with the details of this list claiming, for example, that Cecrops and  Pandion I and II are duplications, that Erysichthon died before Cecrops died and that Amphictyon succeeded Cranaus, his reconstruction is probably largely correct.

From this, Papamarinopoulos concluded that the kings who opposed the Atlanteans lived in the 16^th century BC. Other sources^(c) put their reign from the 15^th to the 13^th centuries BC, so although there are relatively minor differences between commentators, there is a consensus that the 2^nd millennium BC was the time of these early kings, but very definitely not the 10^th millennium BC. As you will see elsewhere, the Parian Marble substantially supports many elements of Papamarinopoulos’ analysis.

^(a) https://web.archive.org/web/20160508103929/http://geolib.geo.auth.gr/digeo/index.php/bgsg/article/viewFile/6631/6393

^(b) https://www.theoi.com/Text/Apollodorus3.html

^(c) Greek Kings Lists (archive.org) *