The Roman Empire was a state that dominated the Mediterranean and much of Europe, Western Asia, and North Africa during the classical period. The Roman Republic had previously conquered most of these
Augustus of Prima Porta
The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the fall of
Roman Empire
…Principate in 27 BC. By the late 3rd century AD, the empire had been divided many times. The Western Roman Empire collapsed in 476 AD, whereas the Eastern Roman Empire (also known as the Byzantine Empire) persisted until the fall of Constantinople in 1453. By 100 BC, the city of Rome had expanded its rule from the…
Constantine I, also known as Constantine the Great, was Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He founded the city of Constantinople (now Istanbul) and made it the capital of the Empire, which it remained for over a millennium.
The Theodosian Walls of Constantinople, very important during the 717–718 siege
Gold solidus of Leo III (left) and his son and heir, Constantine V (right)
The seizure of Edessa (1031) by the Byzantines under George Maniakes and the counterattack by the Seljuk Turks