Answer:
They practiced Christianity.
Explanation:
The Byzantine Empire Practiced this because they originated from the Holy Roman Empire.
Think you are asking about nij&ryoti system, So here is the answer
ryoti system was the type of indigo cultivation in which planters provided the seeds and drill and the cultivators sowed the seeds and look after them.
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Answer: a central government is national government from a single important city rather than local government.
Explanation: its purpose is to oversees finance, commerce, national defense, foreign affairs, and all laws 'necessary and proper'.