A History Of Byzantium Online

: He codified Roman law into the Corpus Juris Civilis , but his reign was also marred by the devastating Plague of Justinian , which decimated the population. III. Survival and Transformation (610–1025 AD)

: Facing a Crisis of the Third Century , Emperor Diocletian divided the Roman Empire into East and West to make it more governable. A History of Byzantium

Byzantium faced centuries of existential threats from Persians, Slavs, and the rise of Islam. Podcasting in Istanbul? - The History of Byzantium : He codified Roman law into the Corpus

: Justinian commissioned the Hagia Sophia , a feat of engineering that remained the world’s largest cathedral for nearly a millennium. A History of Byzantium