how did the Persians promote trade

Sagot :

Several conditions promoted the growth of trade, the relative political stability of the realm, the use of standarize coins, and the availability of good trade routes, newly constructed highways such as the Persian Royal Road and sea routes through the Red Sea, The Persian Gulf and the Arabian Sea.
the relative political stability of the realm, the use of standarize coins, and the availability of good trade routes, newly constructed highways such as the Persian Royal Road and sea routes through the Red Sea, The Persian Gulf and the Arabian Sea.