In 100, the Roman Empire controlled the Balkan Peninsula, Bulgaria, Romania, and part of Hungary. After its fall, the empire was split into two: the Western Empire and the Eastern Empire, also known as the Byzantine Empire. The Byzantine Empire controlled the lands of present-day Eastern Europe until the Turkish Ottoman Empire gradually took control of the southernmost part of the Eastern European region. In addition to the Roman Empire's control, many groups of Slavic descent moved into the area between the years 400 and 600. The Magyars, a non-Slavic group, swept through present-day Hungary during the 800s and established their kingdom, only to lose it to the Ottomans years later. Austria became a major power in the 1400s. They drove the Ottomans out of Hungary and took control of the nation. Austria, Prussia, and Russia took control of Poland in the late 1700s and divided it among themselves, which caused the separate nation to no longer exis