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.
The Roman Empire split into a Western Roman Empire and an Eastern Roman Empire in 395 CE. The Western Empire ended in 476 CE. The Eastern Empire, or Byzantine Empire, ended in 1453. Depending on how you define the Roman Empire: The united empire lasted 426 years The Western Empire lasted a further 81 years, for a total of 507 years The Eastern Empire lasted a further 1058 years after the split, for a total of 1484 years.