A. Choose the correct options. When did the great Roman Empire start to disintegrate? Answer: a. End of 5th century CE ("The great Roman Empire started disintegrating by the end of 5 CE.") What was the eastern Roman Empire known as? Answer: a. Byzantine Empire ("The eastern half of the empire, which came to be known as the Byzantine Empire...") Where was the eastern Roman Empire ruled from? Answer: b. Constantinople ("The Eastern Roman Empire, known as the Byzantine Empire, was ruled from the city of Constantinople...") Which of the following was the main socio-political and economic system in medieval Europe? Answer: a. Feudalism ("Feudalism, a socio-political and economic system was prevalent in medieval Europe.") How many Crusades took place between 11th and 13th century CE? Answer: c. 8 ("There were eight Crusades, out of which, the first four made a huge impact.") B. Fill in the blanks. Constantinople became ...