The Roman Republic-Empire.
It began with the overthrow of the Roman monarchy, traditionally dated around 509 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and advised by a senate. A complex constitution gradually developed, centered on the principles of a separation of powersand checks and balances. Except in times of dire national emergency, public offices were limited to one year, so that, in theory at least, no single individual wielded absolute power over his fellow citizens.
Roman society was hierarchical. The evolution of the Constitution of the Roman Republic was heavily influenced by the struggle between the patricians, Rome's land-holding aristocracy, who traced their ancestry back to the early history of the Roman kingdom, and the plebeians, the far more numerous citizen-commoners. Over time, the laws that gave patricians exclusive rights to Rome's highest offices were repealed or weakened, and leading plebeian families became full members of the aristocracy. The leaders of the Republic developed a strong tradition and morality requiring public service and patronage in peace and war, making military and political success inextricably linked.
During the first two centuries of its existence the Republic expanded through a combination of conquest and alliance, from central Italy to the entire Italian peninsula. By the following century it included North Africa, the Iberian Peninsula, Greece, and what is now southern France. Two centuries after that, towards the end of the 1st century BC, it included the rest of modern France, and much of the eastern Mediterranean. By this time, despite the Republic's traditional and lawful constraints against any individual's acquisition of permanent political powers, Roman politics was dominated by a small number of Roman leaders, their uneasy alliances punctuated by a series of civil wars.
Caesar’s status threatened to eclipse the standing of Pompey, who had realigned himself with the Senate after the death of Crassus in 53 BC. With the Gallic Wars concluded, the Senate ordered Caesar to lay down his military command and return to Rome. Caesar refused, and marked his defiance in 49 BC by crossing the Rubicon with a legion, leaving his province and illegally entering Roman territory under arms.Civil war resulted, from which he emerged as the unrivaled leader of Rome.
She was a member of the Ptolemaic dynasty, a family of Greek origin that ruled Ptolemaic Egypt after Alexander the Great's death during the Hellenistic period. The Ptolemies, throughout their dynasty,
spoke Greekand refused to speak Egyptian. Greek as well as Egyptian languages were used on official court documents such as the Rosetta Stone. Cleopatra, however learned to speak Egyptianand claimed she was the reincarnation of the Egyptian goddess, Isis.