Are you pretending that google doesn't exist, cause you can search this up xD but since I am here I'll be happy to search it up for you. Also, you should CHANGE SOME WORDS for this DON'T COPY IT ALL down.
The origins of the great civilization known as the Byzantine Empire can be traced to 330 A.D., when the Roman emperor Constantine I dedicated a “new Rome” on the site of the ancient Greek colony of Byzantium. Though the western half of the Roman Empire crumbled and fell in 476, the eastern half survived for 1,000 more years, spawning a rich tradition of art, literature and learning and serving as a military buffer between the states of Europe and the threat of invasion from Asia. The Byzantine Empire finally fell in 1453, after an Ottoman army stormed Constantinople during the reign of Constantine XI.