Caesar to Emperor: The Transformation of Rome

In this lesson, we’ll explore one of the most important turning points in world history: the transformation of Rome from a democratic republic into a powerful empire. As Rome grew wealthier and conquered more territory, its republican system struggled to keep up. Power began shifting from elected leaders in the Senate to ambitious generals like Julius Caesar, who used their popularity and military strength to gain control. Caesar’s rise and eventual assassination in 44 BC marked the collapse of the Roman Republic and launched Rome into a period of civil war and uncertainty.

Out of this chaos emerged Octavian, Caesar’s adopted son, who would become Augustus: the first emperor of Rome. Augustus rebuilt the government, expanded the empire, and began a 200-year period of peace and prosperity known as the Pax Romana. During this time, Rome became the dominant power in the ancient world, stretching across Europe, Asia, and Africa. The empire grew stronger through its roads, trade networks, legal systems, and architecture. Many of these advancements still influence our world today. This lesson will help you understand how Rome’s shift from republic to empire shaped the future of government, leadership, and civilization.

Primary Source Analysis: Power and Leadership in Ancient Rome

As you learned in “The Fall of the Republic and the Rise of Power” and “The First Emperor and the Pax Romana,” Rome transformed from a struggling republic into a powerful empire led by strong, ambitious rulers. Leaders like Julius Caesar and Augustus Caesar didn’t just gain power through military victories, they also shaped how people viewed their leadership through speeches, writings, and public honors.

In this DBQ assignment, you will examine two real pieces of writing from these leaders. You’ll explore how Julius Caesar described his own bravery and success, and how Augustus recorded the honors and loyalty he received from Rome. These sources will help you think like a historian: Who created these messages, what do they say, and how did they influence how Romans thought about power and leadership?

Primary Source

  1. Option A: A short excerpt from Caesar’s Commentaries on the Gallic War

  2. Option B: Augustus’s “Res Gestae Divi Augusti” (The Deeds of the Divine Augustus)