Olympus is missing from the Stadiasmus Patarensis and the Stadiasmus Maris Magni. However, both include the already mentioned Corycus, which is described in ancient sources as a port of some significance. There is no evidence that Olympus was a maritime city prior to the 2nd century AD. On this basis Mustafa Adak has argued that Olympus was initially founded on Mount Olympus, which he identifies as Musa Dağı instead of Tahtalı Dağı. In his theory, the Romans destroyed Olympus, after which the population moved to Corycus, and the name of Corycus was changed to Olympus when Hadrian visited the city in 131 AD.