What did the Persian and Assyrian Empires use to maintain communication in their vast empires?

they build roads for military and communication purposes. And they also built stages and use horses to relay messages like the Assyrians

Explanation: Quizlet

harding's opponent in the 1920 election was ohio governor and newspaperman james m. cox, who had won the democratic nomination in a 44-ballot convention battle. harding rejected the progressive ideology of the wilson administration in favor of the laissez-faire approach of the mckinley administration.

was found at b)south carolina