The correct answer here is Constantinople.
Constantinople was founded by Constantine the Great who created the city as a new capital of the Roman Empire. After the dissolution of the Roman empire the city became the capital of the Byzantine Empire. It was the seat of the Emperor and the center of culture and commerce.
The amount of silk increased
The answer to this question is: <span>it was impractical in a large country
In direct democracy, every decision by the Government should be run by all registered citizen within that country.
Imagine if teverytime government want to make a program it should be run through 300 million people. It will take more than 1 presidential period just to finish proposing a program.</span>