Both before and after the civil war between Marius and Sulla Rome was a republic.
What Sulla learned from Gaius Marius were military skills. Sulla served under Marius' generalship during his early military career. Sulla later turned against Marius and fought a civil war (Sulla's first civil war, 88-87 BC) against him and one (Sulla's second civil war, 82-81 BC) against Marius' supporters after Marius' death. Sulla was victorious partly due to loyalty of his legions and partly because he was a great general. Sulla's conflicts with Marius were due partly to personal rivalry and partly to political differences. In 88 BC Sulla was given the command for the First Mithridatic War, but Marius fancied commanding the troops in this war and plotted to have this command transferred to himself. Sulla marched on Rome with his troops, secured his command and left for the front of the war. Sulla belonged to the optimates, a conservative political faction which supported tradition and the interests of the aristocracy. Marius belonged to the populares, a political faction which supported reform in favour of the plight of the poor and opposed the optimantes. Marius used the support of the Populares to plot against Sulla and pursued policies which Sulla strongly opposed.
because he was stupid
Rome was facing a rebellion in Asia Minor that required Rome intervention. The people wanted Marius to lead the war but the senate chose Sulla, who had become a consul. As a result Sulla marched on Rome and declared Marius an outlaw. Marius left to Africa, and Sulla went to the east to deal with the rebellion. As soon as Sulla left for Asia, Marius and his supporters went to take control of Rome once again. Marius died in 86 BCE but his followers continued the battle to take control of Rome. In 82 B.C.E., on his way back from the east, Sulla marched in yet again with his army and the first civil war broke out. Hope this helps!
7 times, as opposed to the traditional Republican law of once every ten years.
Marius Vasselon died in 1924.
Richard Marius died in 1999.
Marius Tscherning died in 1939.
Marius Nizolius died in 1576.
Marius Aventicensis died in 596.
Marius Lefèrve died in 1958.
Marius Sandvei died in 1993.
Marius Chaîne died in 1960.
Marius Jansen died in 2000.
Fleury Marius died in 1972.
Marius Bunescu died in 1971.
Marius Bauer died in 1932.