1911 Encyclopædia Britannica, Volume 11… (1911)
“ Their king Cothelas undertook to supply Philip with soldiers, and his daughter became the wife of the Macedonian. About this time, perhaps being hard pressed by the Triballi and other tribes, the Getae crossed the Danube. Alexander the Great, before transporting his forces into Asia, decided to make his power felt by the Macedonian dependencies. His operations against the Triballi not having met with complete success, he resolved to cross the Danube and attack the Getae. ”
