The split into sunni and shia divisions of islam can be traced to

The Answer is a dispute over the question of Muhammad's successor.

Explanation:

The split into Sunni and Shi’a divisions of Islam can be traced to a dispute over the question of Muhammad’s successor, particularly since he left no direct male heir. Some believed his successor should be the strongest and wisest in the community, while others believed his son-in-law, Ali, was the rightful heir. These groups became known as Sunni and Shi’a, respectively.

gaius cassius longinus and marcus junius brutus, former enemies of julius caesar who'd joined the roman senate, led caesar's assassination, dubbing themselves "the liberators." and the second one is   the assassination of julius caesar was the result of a conspiracy by many roman senators led by gaius cassius longinus, decimus junius brutus albinus, and marcus junius brutus. they stabbed caesar (23 times) to death in a location adjacent to the theatre of pompey on the ides of march 15 march 44 bc.

an unexpected salary cut