Final answer:
Justinian and Theodora made significant contributions to Byzantine history, while the Great Schism was a split between the Eastern Orthodox Church and the Roman Catholic Church.
Step-by-step explanation:
Justinian was the Byzantine emperor from 527 to 565. He is best known for his codification of Roman law, known as the Justinian Code, which became the basis for legal systems in many countries. His wife, Theodora, was a powerful empress who played a significant role in government and advocated for women's rights.
The Great Schism refers to the split between the Eastern Orthodox Church and the Roman Catholic Church in 1054. The primary cause of the schism was a combination of cultural, political, and theological differences. These differences included the use of different languages in religious services, the role of the Pope, and disagreements over various theological doctrines.
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