The quote lends credence to the assertion that B. It was tied to international commerce, which is a claim about Baghdad in the middle ages.
Baghdad is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient Akkadian city of Babylon and the Sassanid Persian capital of Ctesiphon
Baghdad was strategically located on one of the busiest and most valuable trade routes that connected Asia to Europe and the Middle East.
As a consequence of this, it had significant linkages to international commerce, which can be deduced from the fact that significant amounts of Chinese vases and silk were discovered in the city.
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