It became the capitol of Pentapolis (North Africa), a country possessing five cities - Cyrene, Arsinde, Berenice, Ptolemias, and Apollonia, Cyrenaica.
About 150 years after the disaster, the philosopher Eratosthenes visited the site and reported that a standing bronze statue of Poseidon was submerged in a "poros", "holding in one hand a hippocamp", where it posed a hazard to those who fished with nets.
Hellenistic scientists, among whom Euclid, Archimedes, Eratosthenes, developed an axiomatic and deductive way of argumentation.
(The oldest illustration of this may be the realization of Eratosthenes in the ancient world that a flat earth was deformable to a spherical earth, with deformation parameter 1/R⊕.)
Among other thinkers associated with the Library or other Alexandrian patronage were the mathematician Euclid (ca. 300 BC), the inventor Archimedes (287 BC – c. 212 BC), and the polymath Eratosthenes (ca. 225 BC).
In contrast, the traditional date for Troy’s fall, as derived from Eratosthenes, has only one witness, Thucydides, (1:12) to a critical link, which is the number of years from the fall of Troy to the return of the Heracleidae, a span of time that had many diverse figures given by other ancient authors.