This version of the creation of the world, although but one of the many current with the Greeks and Romans, was the one most generally adopted. […] This version was far less popular with the Greeks, although it betrays still more plainly the common source whence all these myths are derived. […] These festivals were known as the Olympian Games; and the Greeks generally reckoned time by Olympiads, that is to say, by the space of time between the celebrations. […] Laomedon’s failure to pay his just debts was the primary cause of the enmity which Apollo and Neptune displayed towards the Trojans during their famous war with the Greeks. […] According to Roman traditions, it could only be entered at Avernus, but the Greeks asserted that there was another entrance near the Promontory of Tasnarum.