The history of the island is lost in the paths of time. Indeed, in ancient times, Agistri was together with Aegina and the surrounding islands, the Kingdom of Aegina, where the mythical king Aiakos ruled. Archaeological findings show that the island was first inhabited at least from the 5th century BC by Peloponnesians who came to the island. In addition, according to Homer, it was the sheltered port of the brave Myrmidons and took part in the Trojan War. Furthermore, in the Homeric epic it is referred to as “Pityonisos” (ie Pefkonisos) and it was also the summer residence of King Aiakos. It is said that Aphaia (=Afanti), the young Vritomarti, hid in its sea caves, in order to escape from the fishermen of Aegina. The goddess Artemis, to help her, gave her flowers to decorate her head, so that they would not recognize her. Thus, the island got the name “Kekryfalia” (= beautifully decorated head). Both Thucydides and Diodorus mention it by this name. Another myth associated with the island is that of the “Telchins”. These are mythical creatures (called children of water and earth), worthy craftsmen and musicians, who were exiled from Rhodes and found refuge in the port of Skala. The inhabitants of the island, because they could not understand what kind of creatures they were, called them “Seals” (seal = fokia, in greek). Even today this port is called “the port of Fokia”. However, it is possible that many seals may have found shelter and food here.