Indus Valley



Geographic Overview of Ancient India

  • Regions: Kashmir, Delhi, Indus River, Benares, Ganges River, Bengal, Calcutta, Bombay, Bay of Bengal, Madras.

  • Standardization of Brick Size: Ratio of height:width:length = 1:2:4.


Early Settlers of the Indus River Valley

  • Settlement: Early inhabitants lived in the Indus River Valley.

  • Flood Patterns: Similar to the Nile, the Indus flooded predictably, providing fertile soil for agriculture.

  • Urban Planning: Developed well-planned cities with:

    • Brick houses

    • Streets

    • Wells

    • Sewage systems

    • Markets


Advanced Urban Features

  • Brick Standardization:

    • Ratio: height:width:length = 1:2:4.

  • Drainage & Sanitation:

    • Functional drains, often referred to as "First Street."

    • Advanced design that utilized gravity for waste removal.


Sanitation Practices

  • Toilets:

    • Flush toilets invented in 1775, influenced by earlier designs in Indus Valley.

    • Homes had private baths where showers were taken using pitchers of water.

  • Waste Management:

    • Waste drained through clay pipes into brick sewers.

    • Sewers contained manholes for sanitation worker access.


Early Settlers: The Aryans

  • Arrival: Aryans entered the Indus River Valley around 1500 B.C.

  • Lifestyle: Nomadic people, did not inhabit cities.

  • Language: No writing system; spoke Sanskrit.

  • Tradition: Passed down history & religion through the Vedas, a collection of oral scriptures and poems.


Cultural Diffusion

  • Cultural Interactions: Unique Indian culture emerged from the blend of Indus Valley civilization and Aryan traditions, leading to the creation of Hinduism.


Understanding the Caste System

  • Definition: A complex and hierarchical division of people in Indian society.

  • Higher vs. Lower Castes:

    • Higher castes considered "purer" than lower castes.

    • Mandated social restrictions (e.g., no inter-caste marriages or sharing food with lower castes).

  • Occupations & Dharma:

    • Each caste had specific roles and duties (dharma).

    • Emphasis on performing one’s own duty, even if done poorly, rather than performing another’s duty well.


Breakdown of the Caste System

  • Brahmin: Priests.

  • Kshatriya: Warriors/Rulers.

  • Vaishya: Common people, landowners.

  • Sudra: Unskilled laborers.

  • Untouchables: Outcasts, performed menial jobs.