The Byzantine Empire started around the 400's and ended around 1453. The Empire was created by the eastern half of the old Roman Empire. The Byzantine Empire lasted so long because they had an organized government, minded their own business, and they did not get to big. The Byzantine Empire was the eastern half of the Roman Empire and were different than the Roman in many ways like the capital of the Byzantine was Constantinople, the religion of the Byzantine was Greek Orthidocs and the Roman religion was Roman Catholic. The language of the Byzantine was Greek and the Romans language was Latin. The Roman was the western half of the Roman Empire and the Roman fell into the "Dark Ages". As the Byzantine grew strong and lasted another 1000 years. The religion and trade of the Byzantine had a big impact on Russia, many ideas of the Byzantine were introduced into Russia by trade, such as the Cyrillic alphabet, religion, art work, and architecture. Some contributions to our society from the Byzantine Empire are Justinians Code, which is the laws of the Byzantine Empire based on the "twelve tables" of Roman law, became a basis for laws in many European nations. One big contribution is the preservers of Greek and Roman culture. The Byzantine saved the knowledge, art, and ideas of the old Roman and Greek cultures.