It was in the neighbourhood of Palaerus, which lay between Leucas and Alyzia.
William Martin Leake, however, placed it south of Alyzia, at Stravolimióna (i.e., Port Stravo).
Sollium was a Corinthian colony, and as such was taken by the Athenians in the first year of the Peloponnesian War (431 BCE).
It is again mentioned in 426 BCE, as the place at which Demosthenes landed when he resolved to invade Aetolia.
This article about a location in ancient Acarnania is a stub.