A final factor in setting the right tone is to determine the purpose of the essay. An author's purpose is the reason for writing. There are three main types of author's purpose: to persuade, to inform or to entertain. If you are trying to convince your reader to believe or to do something, then you are persuading.
Caesar ignored them and at the Battle of Munda, defeated Pompey. There were many civil wars during Rome in the first century B.C., as many high-ranking patricians such as consuls fought to be more powerful than each other.
In a civil war between Julius Caesar's nephew Augustus and Marc Anthony, however, Antony and Cleopatra were finally defeated. They killed themselves (or perhaps were killed) in 30 BC, and the Romans took over Egypt. The Romans valued Egypt very highly, because it was so fertile and produced so much food.