Early West Asian Civilizations Persian Innovations: Roads and Currency Systems West of Mesopotamia, the Persian Empire in modern-day Iran introduced groundbreaking innovations that shaped early civilizations. Persian Empire: Pioneers of Infrastructure Around 2000 BCE, Persia pioneered the construction of purposeful road systems, enhancing connectivity and facilitating trade routes across its vast empire. Its strategic placement of roads laid the foundation for efficient transportation and communication networks. Currency Revolution: Standardized Monetary Systems The Persian Empire implemented a common currency, marking the first organized monetary system in human history. This innovation revolutionized trade and commerce, enabling seamless transactions and contributing to economic prosperity within the empire. What was the significance of the Persian Empire's standardized monetary system? It hindered economic growth. It enabled organized trade. It promoted cultural fragmentation. It led to political instability.