The Byzantine Empire preserved Roman and Greek culture after the fall of Rome. It blended these influences with Christianity and Middle Eastern styles. The empire reached its height under Justinian in the 6th century, when he reconquered territory and codified Roman laws. However, constant attacks weakened the Byzantines over time, and the empire ultimately fell to the Ottoman Turks in 1453. The Byzantines left a significant legacy in law, culture, art, and Eastern Orthodox Christianity.