WORLD CIVILIZATION

Detailed explanation-1: -Persian Royal Road, also called Royal Road of Persia or Royal Road, ancient road running from Susa, the ancient capital of Persia, across Anatolia to Sardis and Smyrna on the Aegean Sea, a distance of more than 2, 400 km (1, 500 miles).

Detailed explanation-2: -The 2, 400 kilometres (149 miles) journey that led from the Aegean Sea to Iran was formerly known as the Royal Road, supposedly taking 90 days to cross by foot.

Detailed explanation-3: -The Royal Road of Persia was a communications and transport road across ancient Persia. The 1500-mile (2400 km) road connected the ancient capital city of Susa to Sardis. King Darius the Great had the road built during his reign in the fifth century BCE to connect his developing empire.

Detailed explanation-4: -In about 3500 b.c., a 1, 500-mi (2, 414-km) long road running from the Persian capital of Susa to the Aegean Sea came into use. Not necessarily a road as understood by modern usage, this was more a track worn into the soil that was used in a routine, if not an organized, way for over 2, 000 years.

Detailed explanation-5: -The road network allowed Darius a way to access and maintain control over his conquered cities throughout the Persian empire. It is also, ironically enough, the same road that Alexander the Great used to conquer the Achaemenid dynasty a century and a half later.