How was the 7 Year's War different from the French & Indian War?

In Europe, the French and Indian War is conflated into the Seven Years' War and not given a separate name. "Seven Years" refers to events in Europe, from the official declaration of war in 1756—two years after the French and Indian War had started—to the signing of the peace treaty in 1763.

Explanation:

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

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coz they had the rank system in society according to the economic power of the people