During this period Sulla gained renown by his valorous deeds, but the jealousy that had begun in Africa increased, and in 103 or 102, he left Marius and joined himself to his colleague Lutatius Catulus, who was endeavoring to stem another torrent of barbarians, this time pouring down toward Rome from the valley of the Po. When Marius reached home after his victories in Gaul, he was offered a triumph, but refused to celebrate it until he had marched to the help of Catulus, who, he found, was then retreating before the invaders in a panic. After the arrival of Marius the flight was stopped, and the barbarians totally destroyed at a battle fought near Vercellæ. Though much credit for this wonderful victory was awarded to both Catulus and Sulla, the whole honor was at Rome given to Marius, who celebrated a triumph, was called the third founder of the city (as Camillus had been the second), and enjoyed the distinction of having his name joined with those of the gods when offerings and libations were made. The jealousy of Sulla was all this time growing from its small beginnings. While Marius and Sulla were fighting the barbarians there had been a second insurrection among the slave population of Italy, and it was not distant Sicily only that was troubled at this time, for though the uprising spread to that island, many towns of Campania were afflicted, and at last the contagion had affected thousands of the slaves, who arose and struck for freedom. The outbreak in Campania was repressed in 103, but it was not until 99 that quiet was restored on the island, and then it was by the destruction of many thousands of lives. Large numbers of the captives were taken to Rome to fight in the arena with wild beasts, but they disappointed their sanguinary masters by killing each other instead in the amphitheatre. The condition of the slaves after this was worse than before. They were deprived of all arms, and even the spear with which the herdsmen were wont to protect themselves from wild beasts was taken away.