I have made some mention of the Gallic invasion of Greece in my description of the Athenian Council Chamber.1 But I have resolved to give a more detailed account of the Gauls in my description of Delphi, because the greatest of the Greek exploits against the barbarians took place there. The Celts conducted their first foreign expedition under the leadership of Cambaules. Advancing as far as Thrace they lost heart and broke off their march, realizing that they were too few in number to be a match for the Greeks.