The domestic religion, forbade that two families if joined, but to the times it was possible that they joined themselves to celebrate a cult in common, and with the time this was happening, and certain number of families was if grouping, called for the Greeks fratria, and the Latins of bar, them had raised a bigger deity that its deuses domestic servants, therefore solely the families were adored by all. A fratria or a bar without its altar did not exist and its god guard; there they kept the same cults carried through in family. With the time, diverse bars or fratrias had been if gathering thus forming the tribe, them also they had its religion, and in each tribe they had its altar and its protective god, this god generally was a hero or a man of being able divinizados, of this hero took off the name of the tribe and had its day of party annually. The old ones adored its ancestor as well as deuses of physical nature, did not have separation of the man with the nature, it admired the sun, the beautiful moon and things that it saw. Its life was entorno of the nature, for harvest waited a signal come of a cloud; feared a storm that destroyed its work. It felt ahead to each lesser moment of the force encircled that it.
' ' The tribe, as the family and the fratria, constitua in independent body, with special cult of where if exclua estrangeiro.' ' (p.137). According to Coulanges, as the fratrias were congregated in one same tribe, a condition was established, so that each one respected the cult of the other, thus forming the city. The city is not an aggregate of people, but yes a confederation of some tribes. City and urbe had not been the same thing for the old ones, ' ' The city was the religious association and politics of the families and the tribes; urbe, the place of meeting, the domicile and, over all the sanctuary of this sociedade.' ' (p.145).