Caste System: Did you mean...?

A map of the Inca road system which included some 40,000 km of routes.

The underground channel of a qanat in the Turfan water system in the Turpan Depression of Xinjiang, China.

Brahmanism (also known as Vedic Religion) is the belief system that developed from the Vedas during the Late Vedic Period (c. 1100-500 BCE) originating in the Indus Valley Civilization after the Indo-Aryan Migration c. 2000-1500 BCE. It claims...

India is a country in South Asia whose name comes from the Indus River. The name 'Bharata' is used as a designation for the country in their constitution referencing the ancient mythological emperor, Bharata, whose story is told, in part...

The entrance to the water system at Tel Gezer in central Israel. This photo was taken during the 2011 excavations of the water system by the New Orleans Baptist Theological Seminary. The water system is believed to have been built during...

The Shushtar Hydraulic System is a Sasanian era (3rd century CE) water irrigation system in Shushtar in Iran that included watermills, dams, tunnels and canals. The mills, one of which is still functioning, were used to grind wheat and barley...

In recent years, a persistent criticism has been leveled against the use of the BCE/CE system (Before the Common or Current Era/Common or Current Era) , rather than BC/AD (Before Christ/Anno Domini or 'Year of Our Lord'), in dating historical...

Earth's solar system by NASA and Rawpixel.

Smugglers in 1808, defying the Continental System. Etching by John Augustus Atkinson and William Miller, 1808. National Maritime Museum, Greenwich, London.

Intercultural referral model used in Dino Stagno Hospital, Traiguen, Chile.