What Time Period Is Unit 3 of AP World History?

If you’re currently studying AP World History, you may be wondering what time period Unit 3 covers. Unit 3 is a crucial part of the course as it delves into the period of 600 CE to 1450 CE.

This era is also known as the post-classical era, a time when many significant changes took place in various parts of the world. Let’s take a closer look at this fascinating period in human history.

The Post-Classical Era

The post-classical era is characterized by significant developments in religion, trade, and politics. During this time, several empires rose and fell, and new religions emerged. The most notable empires of this era include the Byzantine Empire, Tang Dynasty in China, Abbasid Caliphate in the Middle East, and the Mali Empire in West Africa.

Religious Developments

One of the most significant religious developments during this period was the spread of Islam. The Islamic religion began to spread beyond Arabia into other parts of Africa and Asia during this time. Christianity also continued to spread during this period with the rise of Eastern Orthodoxy.

Trade and Commerce

Another significant development during Unit 3 was trade and commerce. The Silk Road continued to be a vital trade route linking China with Central Asia and Europe.

This led to increased cultural exchange between these regions. Additionally, Indian Ocean trade routes became more prominent with advancements in shipbuilding technology.

Political Developments

During Unit 3, several empires rose to prominence while others declined or collapsed entirely. The Byzantine Empire continued to thrive while Europe was experiencing political fragmentation after the fall of the Roman Empire. In China, the Tang Dynasty marked a period of stability while Japan saw political decentralization.


In conclusion, AP World History Unit 3 covers the period of 600 CE to 1450 CE, also known as the post-classical era. This period was characterized by significant religious, trade, and political developments that shaped human history in various ways. By understanding this era’s key events and trends, you can gain a deeper appreciation for how our modern world came to be.