How did president roosevelt respond to

a. philip randolph's threat to organize a protest march by african americans on washington,

d. c., in 1941?

A committee was formed to ensure that African Americans were hired alongside whites for defense jobs

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.

the first forms of writing came from them in the form of pictographs around 3100 bc.