lesson 42

The Byzantine Empire 🏛

The Byzantine Empire refers to the eastern half of the Roman Empire, which continued to thrive for another thousand years after the fall of the Western Roman Empire. Its capital was Constantinople (originally Byzantium, now Istanbul), a strategically located city that became a hub for trade and culture.

The empire's enduring success was partly due to its strong central government, a uniform legal system based on Roman law, a thriving economy, and a rich culture that blended Roman, Greek, and Christian traditions. It served as a bastion of Christianity and preserved classical learning throughout the Middle Ages.

The Beginning of New Rome 💡

Constantinople was founded by Greek colonists in the 600s B.C. The city was initially called Byzantium, and in A.D. 330, Constantine I made it the new capital of the Roman Empire, renaming it "New Rome." The empire was formally divided into Eastern and Western sections, with the Eastern Empire eventually becoming known as the Byzantine Empire. It continued into the Middle Ages, with the Western Roman Empire ending in A.D. 476.

The First Great Leader: Justinian I (A.D. 527–565) 👑

Justinian I is considered the first great leader of the Byzantine Empire. He undertook ambitious campaigns to reclaim lost Roman territories, particularly in the West. He was also known for his extensive building projects and for his codification of Roman law.

General Belisarius

Justinian's gifted general, Belisarius, achieved significant military victories against the Ostrogoths, Vandals, and Visigoths, restoring much of the former Roman Empire territory.

Empress Theodora (c. 500–548)

Theodora, Justinian's wife, was a highly influential and intelligent woman who played a vital role in his reign. She provided keen political advice and championed women's rights, using her influence to pass laws that improved the status of women and children.

Justinian's Accomplishments

  • Reconquest: Reclaimed parts of North Africa, Italy, and Spain.

  • Architecture: Oversaw massive building projects, including the Hagia Sophia, a monumental church that showcased Byzantine architectural and engineering skill.

  • Justinian Code: Commissioned the codification of Roman law, resulting in the Corpus Juris Civilis (Body of Civil Law), which became the foundation of modern European legal systems.


  • The Code had four parts:



  1. The Code: Roman laws.

  2. The Digest: Opinions of Roman jurists.

  3. The Institutes: Textbook for law students.

  4. The Novellae: New laws issued by Justinian

Decline and Fall of the Byzantine Empire 🍂Invasions and Iconoclastic Controversy

The Byzantine Empire faced numerous challenges that led to its decline. Barbarian groups like the Avars, Bulgars, and Slavs frequently invaded from the north. The expanding Arab empire conquered many Byzantine provinces in the east and south.

  • Islamic Expansion: Beginning in the 630s, the Arabs rapidly expanded their empire, conquering Byzantine territories in Syria, Palestine, Egypt, and North Africa. By the late 7th century, the Byzantines were fighting for their survival.

  • "Greek Fire": The Byzantines used a secret weapon called "Greek fire" (an incendiary liquid) to repel Arab attacks, particularly during sieges of Constantinople. This allowed them to hold off the Arabs at critical moments.

  • Iconoclastic Controversy: In the 8th century, a major religious dispute arose over the use of icons (religious images) in worship. Emperor Leo III initiated a policy of iconoclasm, ordering the destruction of icons, believing their use was idolatrous. This caused significant division within the empire and with the Western Church. The controversy ended in A.D. 843 when icons were restored.