They were celebrated on his return to Rome for the last time, after having completed the conquest of the world.

The processions of this triumph occupied four days.

In fact, there were four triumphs, one on each day for the four days.

The wars and conquests which these ovations were intended to celebrate were those of Gaul, of Egypt, of Asia, and of Africa; and the processions on the several days consisted of endless trains of prisoners, trophies, arms, banners, pictures, images, convoys of wagons loaded with plunder, captive princes and princesses, animals wild and tame, and every thing else which the conqueror had been able to bring home with him from his campaigns, to excite the curiosity or the admiration of the people of the city and illustrate the magnitude of his exploits.

Of course, the Roman generals, when engaged in distant foreign wars, were ambitious of bringing back as many distinguished captives and as much public plunder as they were able to obtain, in order to add to the variety and splendor of the triumphal procession by which their victories were to be honored on their return.