On 16 July 390 BC, a Gallic army less than the management of tribal chieftain Brennus, met the Romans on the banking companies of the Allia River ten miles north of Rome. The metropolis of Rome grew from settlements around a ford on the river Tiber, a crossroads of website traffic and trade. This triggered a dilemma, in that Rome arrived to have a substantial male populace but was bereft of girls.