How did the establishment of Constantinople as the capital of the Eastern Roman Empire impact medieval times?

The capital of the Eastern Roman Empire was changed to Constantinople to provide political, economic, and military advantages. ... The Byzantine Empire preserved both Roman and Greek achievements in the East while the West fell into a Dark Age.

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b) brahmans   is nomadic society

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration