Answer:
Justinian- The Code came into use around the year 530 and continued to be used as the basis of Byzantine law until the fall of the empire in 1453. Thus, the Code was significant simply because it was the basis of law for an empire for more than 900 years. ... It eventually became the foundation of legal codes across all of Europe.
Byzantine- Constantinople was the center of Byzantine trade and culture and was incredibly diverse. The Byzantine Empire had an important cultural legacy, both on the Orthodox Church and on the revival of Greek and Roman studies, which influenced the Renaissance.
Roman Catholic Church- During the Middle Ages the Roman Catholic Church was the most powerful organization in western Europe. It not only had religious power but also gained more and more political power. Popes launched Crusades to conquer back the Holy Land from Muslims.
Eastern orthodox church- The Eastern Orthodox Church teaches that it is the Church started by Jesus Christ in his instructions to the Apostles. ... It practices what it understands to be the original Christian faith and maintains the sacred tradition passed down from the apostles.
Step-by-step explanation: