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.
It was an Islamic empire--as the Byzantine had been a Christian empire--that was literally the private holding of the Osmanli family from whom the concept of the Ottoman state could not be separated. The ruling house and the empire's civil and military ruling class were considered Ottomans.ecovery of Ottoman prestige was slow, but Anatolia was gradually reabsorbed, and in the 1420s Ottoman power had revived sufficiently to undertake fresh campaigns in Greece. Aside from scattered outposts in Greece, all that remained of the Byzantine Empire was its capital, Constantinople.