What is a phoenician invention that influenced the western world?

A phoenician invention that influenced the western world was the alphabet. It made writing and record keeping much easier, boosting trade efficiency

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.

they died because of a disease during the first spanish colonies.