The Eastern church was led by patriarchs. Holy spirit comes from the father. They banded and destroyed icons. Priests could marry. Services conducted in Latin.
Justinian died in 565. The emperor had taken out to pay for his many wars nearly bankrupted the empire. Justinian gave and helped people in his world he gave grain to those who didn't have food, he also helped others by giving them grain.
Byzantinium opened a new golden age, launched an army on 1453. On May 29,1453 was the final assault. Byzantinium made more control over trade, buildings and Institutions.
The constantinople was the world's largest city, with its 500,000 inhabitants packed together. Many residents lived in poor conditions. They relied on government to handout bread.