In 344 party struggles between oligarchs and democrats led to a usurpation by the tyrant Timophanes, whose speedy assassination was.
In the 4th century its political development was arrested by constant struggles between oligarchs and democrats, who in turn brought the city under the control of Sparta (4 12 -395, 39 1 -37 8), of Athens (395-39 1, 37 8 -357), and of 'the Carian dynasty of Maussollus (357-340).
We learn that he intervened in the Greek city Seleucia in favour of the oligarchs (Tac. Ann.
And Venice was ruled by a close oligarchy; Florence was passing from the hands of her oligarchs into the power of the Medicean merchants.
Thanks to the blind complaisance of its democrats and the timid subserviency of its once haughty oligarchs, he became master of its fleet and arsenal (16th of May 1797).