What was the office of the two men who held the executive power of the roman republic and commanded the army

Roman Republic, the government was committed as a republic period of the ancient Roman civilization. Traditionally, the Roman tekerklig dated 508 BC as the year instead of annually elected by the citizenry, and began to fall and the introduction of a government headed by two consuls advice given by a senate. Developing an increasingly complex constitutional separation of powers and was centered on the brakes and balance principles. Outside major emergencies, government departments was limited to one year, at least in theory work, no individual could dominate the sister-citizens.
In practice, the Roma community was hierarchical. Roman Republic history of the lineage of the Constitution, the Roman Empire in the early history of basing the Roman landowner aristocracy (patricia) and citizens from the public in a much larger number, the plebs were influenced to a large extent the struggle between. Over time, Rome's highest government offices were repealed laws that weaken the exclusive rights to Patricia was born on or a new aristocracy of plebeian class.

The correct answer is "  it was believed that the dispute emerged in 632 just after the death of the prophet muhammad."