Ibn Battuta was able to travel extensively across Asia and Africa in the early fourteenth century because all these answers are correct.
Western Church:
Wrote and spoke in Latin
Believed that the Holy spirit was sent from father(God) to his son
Celebrated Eastern on Sunday
Accepted Dionysius system
Eastern Church:
Spoke and wrote Latin
Thought that the Holy spirit came from both father and son
Celebrated Eastern on Passover (1 week)
Muslims had a strong effect on Church so they became Constantinople's patriarch
The main cause these churches split was because of the excommunication.
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They are implied powers of congress, which are allowed the elastic clause
Answer:
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