In the interior, near the Macedonian frontier, there is a considerable lake from which the Drino issues. In the same part we find, ever since the middle ages, the town of ACHRIDA, which was the capital of the Bulgarian empire at the time when it extended from the Black Sea as far as the interior of Aetolia, and comprised southern Illyricum, Epirus, Acarnania, Aetolia, and a part of Thessaly. It has been thought that this town is the ancient _Lychnidos_. During the Roman period the _Dessaretans_ dwelt there; the neighbouring country was occupied by the _Autariatans_, who are said to have been driven from their country in the time of Cassander, when they removed as fugitives with their women and children into Macedonia. According to the story, which we read in Justin, they were compelled to quit their country, because the frogs had increased there to an intolerable extent. In the common editions of Justin, however, we read, owing to a blunder of the transcriber, _Abderitae_ instead of _Autariatae_, from which Wieland has made the lengthy and absurd story, that the people of Abdera delighted in breeding frogs, and that in the end they were driven by these animals out of their own country. Little as has yet been done by criticism for Justin, still it is sufficiently clear, that he is speaking of the Autariatae, and not of the Abderitae. Diodorus of Sicily quite plainly relates the true history of this expulsion of the Autariatae; but they were not all driven from their country; some of them remained behind, and became subjects of the Gauls, for we find Autariatae under the banner of the Gauls during their expedition against Delphi. But after that time they disappear, and in this disappearance the Greeks saw their punishment by the deity.