He used riches gained in trade to pay for great places
He had everyone in the empire use the same money system of weights and measurements.
A system of roads to facilitate communications and trade.
He established fleets of trading ships to supplement the slow and limited cargo transport on the road system.
He secured the borders, provided provincial government, internal and external security, and promoted trade and prosperity.
Darius revolutionized the economy by placing it on a silver/gold coinage system. Trade was extensive, and under the Achaemenids there was an efficient infrastructure that facilitated the exchange of commodities among the far reaches of the empire.
He had everyone in the empire use the same money system of weights and measurements.
A system of roads to facilitate communications and trade.
He established road and sea transportation links to improve trade and security. He established Aramaic as a lingua franca to help communication. He established 20 provinces under Persian governors to control internal and external security and promote production and trade.
It provided the basis for trade and purchasing.
He established fleets of trading ships to supplement the slow and limited cargo transport on the road system.
He secured the borders, provided provincial government, internal and external security, and promoted trade and prosperity.
He divided his empire into 20 provinces, each with a Persian provincial governor responsible for internl and external security, developing trade and commerce, and collecting taxes.
An effective road and sea transportation system. A system of 20 provincial Persian governors who provided internal and external security and promoted production and trade.
Darius revolutionized the economy by placing it on a silver/gold coinage system. Trade was extensive, and under the Achaemenids there was an efficient infrastructure that facilitated the exchange of commodities among the far reaches of the empire.
Darius I enforced the coinage system which was adopted from Lydia (which was already conquered by Persia during that time). For more information you can look here: http://www.snible.org/coins/hn/persia.html or search "Persian coinage"
persian trade routes,african trade routes,ocean trade routes,mediterranean trade routes,and silk roads.
Tribute from subject cities, tribes and principalities were replaced by taxes levied on ports, internal trade, sales, and also on states, fields, gardens, flocks and minesHe established 20 provinces and each Persian provincial governor was made responsible to collect the taxes.