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Ancient River Valley Civilizations

Jul 11, 2025

Overview

This lecture covers the development of ancient river valley civilizations, focusing on Mesopotamia and the Indus Valley, their geographic settings, innovations, and contributions to modern society.

Mesopotamian Civilization

  • Mesopotamia is located between the Tigris and Euphrates rivers in the Fertile Crescent.
  • Known as the "Cradle of Civilization" for early cities, writing, government, and laws.
  • Major contributions: Code of Hammurabi (first written law), Ziggurats, and the Hanging Gardens of Babylon.
  • Lex talionis is the principle of "an eye for an eye" justice.
  • The division of labor allowed for work specialization and agricultural growth.

Indus Valley Civilization

  • The Indus Valley Civilization emerged in South Asia (present-day Pakistan, India, Afghanistan).
  • Important cities: Harappa and Mohenjodaro, called twin cities due to similar urban plans.
  • Notable features: planned cities, grid street layout, fortified citadels, and advanced drainage systems.
  • Innovations included brick construction, the Great Bath, water systems, scales, measures, and trade seals.
  • Maintained a unique, yet undeciphered pictogram writing system.
  • Indus cities had active trade, including trade with Mesopotamia.
  • Houses were made of sun-dried bricks; crafts included bronze, copper items, and jewelry.

Geography of Ancient India

  • The Indian subcontinent is triangular, bordered by the Himalayas and Hindukush mountains.
  • Three main zones: Northern Plains (fertile and river-rich), Deccan Plateau (dry, less suitable for farming), Coastal Plains (good for trade and fishing).
  • Natural barriers like mountains influenced unique cultural development.
  • The Kyber Pass through the mountains facilitated invasions and trade.

Indus Valley Society & Legacy

  • Cities were highly organized and demonstrated advanced urban planning.
  • Society possibly led by kings, with centralized government structures.
  • The decline may have resulted from environmental changes or Aryan invasion.
  • Aryans introduced the caste system, foundational to later Hindu society.

Key Terms & Definitions

  • Fertile Crescent — Area of fertile land between the Tigris and Euphrates Rivers.
  • Code of Hammurabi — First comprehensive system of written laws.
  • Lex talionis — Principle that the punishment matches the crime.
  • Citadel — Fortified center of a city for government and social activities.
  • Great Bath — Public bathing structure in Mohenjodaro.
  • Kyber Pass — Mountain pass used for trade and invasions.
  • Indus Script — Ancient, undeciphered writing system of the Indus Valley.

Action Items / Next Steps

  • Review the features and contributions of Mesopotamian and Indus Valley civilizations.
  • Complete any questions or map activities about ancient river valley geographies.
  • Study key terms and innovations for quiz or exam preparation.