Higher education institutions around the world make use of online proctoring for tens of thousands of exams. The 17 campuses of the University of North Carolina proctor between 30,000 and 40,000 exams online per year. At the fully online Western Governors University, 30,000 exams are proctored online each month.
In the east, it continued as the Byzantine Empire until the death of Constantine XI and the fall of Constantinople to the Ottoman Turks in 1453 CE. The influence of the Roman Empire on western civilization was profound in its lasting contributions to virtually every aspect of western culture.
Answer Wiki. It is interesting the the Byzantine Empire was never called that while it existed. The name was given by historians only in 16th century. It was known as Roman Empire or simply Romania to its inhabitants. The major contribution of the Byzantine empire is the preservation of the Greek language and culture. Greek philosophy, ethics and science became a foundation of the Western civilization.