What are some similarities/differences between the eastern and western halves in ancient rome?

 When Rome declined, the western half of the empire formed the Byzantine Empire. The eastern half became the Holy Roman Empire. Because the Byzantine Empire came from the fall of the Roman Empire, the Byzantine Empire had many similarities with Rome. In addition to these similarities, there were also several differences between these two empires. This includes culture, religion, and location.  These similarities and differences helped shape the Byzantine Empire into what it became.