Early Humans and Beginning of Civilisation

Revision Summary: Early Humans and Beginning of Civilisation (Chapter 4)

1. Chapter at a glance

• Human history before writing (more than 99% of it) is reconstructed mainly from archaeological evidence such as tools, fossils and artefacts.
• Earliest ancestors (australopithecines to Homo sapiens) evolved in Africa; Homo erectus was the first hominin to migrate out of Africa around 2 million years ago.
• Stone Age is divided into Palaeolithic (hunter-gatherers with handaxes, cleavers), Mesolithic (microliths, warmer climate) and Neolithic (domestication of plants/animals, pottery, settled villages).
• Neolithic Revolution marked the shift from hunting-gathering to food production; Chalcolithic introduced copper tools.
• Bronze Age saw the rise of urban civilisations in river valleys: Sindhu–Sarasvatī (Harappan), Mesopotamian, Egyptian and Chinese.
• Writing systems emerged around 3200–3000 BCE (cuneiform in Sumer, hieroglyphs in Egypt); Harappan script remains undeciphered.
• Early civilisations developed standardised weights, trade, craft production, social hierarchy and administrative systems.

2. Key terms and concepts

• Hominin: Group including modern humans and early human-like ancestors who made tools.
• Homo erectus: Upright/bipedal ancestor who made handaxes and cleavers; first to leave Africa.
• Fossil: Preserved remains or impressions of plants, animals or humans turned to stone over long periods.
• Old World: Geographical area of the oldest Palaeolithic human settlements (Africa, Asia, Europe).
• Palaeolithic (Old Stone Age): Period of hunting-gathering with simple stone tools.
• Mesolithic: Transitional phase with microlithic tools after climate warming (~12,000 years ago).
• Neolithic (New Stone Age): Period of agriculture, animal domestication, polished tools and pottery.
• Neolithic Revolution: Gradual shift to food production and settled life.
• Chalcolithic (Copper-Stone Age): Use of copper alongside stone tools.
• Bronze Age: Period of bronze metallurgy, trade, towns and early civilisations.
• City-state: Sovereign state centred on a city ruling surrounding territories.
• Ziggurat: Stepped pyramid temple in Sumerian cities.
• Cuneiform: Wedge-shaped writing system invented by Sumerians (~3200 BCE).
• Papyrus: Early paper made from the papyrus plant used in Egypt.
• Mummification: Process of preserving bodies for the afterlife in Egypt.

3. Important facts

4. Cause and effect

• Warmer climate after ~12,000 years ago → expansion of forests/grasslands → wider food resources → population growth and Mesolithic microlith use.
• Familiarity with seasons and resources → gradual domestication of plants and animals → Neolithic Revolution → surplus food, pottery, permanent villages.
• Introduction of copper/bronze metallurgy + fertile river plains → higher agricultural productivity → trade, craft specialisation and urban centres (Bronze Age civilisations).
• Need for irrigation, administration and record-keeping → invention of writing (cuneiform, hieroglyphs) and standardised weights/measures → complex societies and long-distance trade.
• Cultural continuity from Early Harappan Chalcolithic sites → emergence of Mature Harappan urban civilisation by 2600 BCE.

5. Maps, sources and visuals

• Fig. 4.4: Map of early Homo erectus dispersal routes out of Africa.
• Fig. 4.6: Sequence of skulls from Homo habilis to Homo sapiens.
• Fig. 4.8: Map of major early human sites in the Indian subcontinent (Palaeolithic, Mesolithic, Neolithic).
• Fig. 4.17: Map of Early and Mature Harappan sites.
• Fig. 4.21 & 4.26: Maps of Mesopotamian Fertile Crescent and trade links with Meluhha (Harappan).
• Fig. 4.14: Chart showing transition to agriculture in different world regions.
• Fig. 4.7 & 4.18: Timelines of Stone Age periods and Harappan phases.
• Visuals: Harappan seal with undeciphered script, Bhimbetka cave art, Neolithic tools, cuneiform tablet, Rosetta Stone reference, social hierarchy pyramid (Egypt).

6. Common misconceptions and exam pitfalls

• Assuming the Harappan script is deciphered like cuneiform or hieroglyphs (it is not).
• Confusing the timeline: writing marks the start of the historical period (~5000 years ago), not the beginning of human presence.
• Mixing up “Neolithic Revolution” with a sudden event (it was gradual).
• Forgetting regional variation in the start of agriculture (Mehrgarh ~7000 BCE vs later in other parts of India).
• Overlooking that early civilisations emerged independently in river valleys but shared features like writing, trade and urban planning.
• Incorrectly dating Indian sites or placing Mehrgarh outside the Indian subcontinent context.