Chapter 4: Early Humans and Beginning of Civilisation

Why this chapter matters for UPSC: Prehistory and the ancient civilisations are examinable GS1 Ancient History and World History content. This chapter covers the highest-yield parts — human evolution and Out-of-Africa migration, the Stone Age classification (Palaeolithic/Mesolithic/Neolithic + Chalcolithic/Bronze/Iron), the Neolithic Revolution, the Harappan (Sindhu-Sarasvati) civilisation, and the three contemporary Bronze Age civilisations (Mesopotamia, Egypt, China). Key facts — Mehrgarh, Bhimbetka, cuneiform, the Code of Hammurabi, the Rosetta Stone, the Silk Route — recur in Prelims, and the "civilisations on river plains" theme is a classic GS1 essay point.

🧠 First Principles — Read This First

Human beings evolved in Africa and migrated outward, progressing through the Stone Ages (Palaeolithic hunter-gatherers → Mesolithic → the Neolithic Revolution that invented agriculture and settled village life) into the metal ages, so that around 5,000 years ago the first civilisations arose independently on fertile river plains — the Sindhu-Sarasvati (Harappan) alongside Mesopotamia, Egypt and China — marked by cities, writing, trade, administration and social hierarchy. Early human history (before writing) is known mainly from archaeology — tools, fossils and cave art. Humans (hominins = tool-makers) evolved in Africa: Homo habilis (Olduvai Gorge), Homo erectus (first to leave Africa, made handaxes/cleavers), and Homo sapiens (evolved ~300,000 years ago, spread worldwide). Prehistory is classified by technology: Palaeolithic (Old Stone Age — hunter-gatherers, stone tools), Mesolithic (microliths, ~12,000 years ago after warming), Neolithic (New Stone Age — the Neolithic Revolution: domestication of plants/animals, farming, pottery, permanent villages), then Chalcolithic (copper + stone), Bronze Age, and Iron Age. In India, Mehrgarh (~7000 BCE) is the oldest Neolithic/farming site; farming spread and, on the fertile Indus and Ghaggar-Sarasvati plains, matured into the Sindhu-Sarasvati (Harappan) Bronze Age civilisation (~2600 BCE) with planned cities, standardised weights, seals and an undeciphered script. Four early civilisations arose on river plains — Harappan (Sindhu-Sarasvati), Mesopotamian (Tigris-Euphrates; cuneiform, ziggurats, Code of Hammurabi), Egyptian (Nile; pyramids, hieroglyphs), and Chinese (Huang He; Shang/Zhou dynasties, Silk Route) — each with cities, writing, trade and social hierarchy. Grasping that humans evolved and migrated from Africa, invented farming (Neolithic Revolution), and built the first river-valley civilisations with cities, writing and administration is the foundational insight of the chapter.

Why this matters: human evolution, the Stone Age sequence, the Neolithic Revolution, the Harappan civilisation, and the world's river-valley civilisations are staple GS1 Prelims and Mains content.

PART 1 — Quick Reference

PART 2 — Concepts & Narrative

Human evolution and the Out-of-Africa migration

Before writing, we know the past through archaeology — tools, fossils and cave art. Humans (hominins, i.e. tool-makers — the ability that separates human from animal behaviour, from ~3.3 million years ago) evolved in Africa: Homo habilis ("handy man", Olduvai Gorge, Tanzania), Homo erectus (upright; made handaxes and cleavers; the first to migrate out of Africa ~2 million years ago), Homo neanderthalensis (Europe/SW Asia), and Homo sapiens (modern humans, evolved ~300,000 years ago, spread worldwide 50,000-12,000 years ago). Tools are "extra-corporal limbs" — extensions of the body.

The Stone Ages and the Neolithic Revolution

Prehistory is classified by technology and lifestyle:

• Palaeolithic (Old Stone Age) — hunter-gatherers using stone tools (handaxes, cleavers, scrapers). India's oldest sites: Attirampakkam (Tamil Nadu, ~1.5-1.7 million years) and Isampur (Karnataka).
• Mesolithic — after global warming ~12,000 years ago, expanded forests/grasslands and a population explosion; small microlithic tools, fishing, and flourishing art (the Bhimbetka rock shelters, a World Heritage Site).
• Neolithic (New Stone Age) — the Neolithic Revolution: the shift from food-gathering to food production through domestication of plants and animals, plus pottery and the first permanent villages — the foundation of civilisation.

The Sindhu-Sarasvati (Harappan) civilisation

In India, Mehrgarh (~7000 BCE, on the Bolan river) is the oldest Neolithic farming village — sun-dried brick houses, granaries, wheat/barley, and domesticated zebu cattle; its people made the first copper objects (~4000 BCE, entering the Chalcolithic). This laid the base for the Bronze Age Sindhu-Sarasvati civilisation (mature phase ~2600 BCE) on the fertile Indus and Ghaggar-Sarasvati plains — famous for planned cities, water management (Dholavira's tanks, Lothal's dockyard), standardised weights (binary for small units, decimal for large), inscribed seals, and the still-undeciphered Harappan script (Sindhu lipi). Early Harappans at Kalibangan even ploughed cross-furrowed fields for double-cropping (like today's Rabi/Kharif).

The three other Bronze Age river-valley civilisations

The chapter's big comparative point: four early civilisations arose independently on fertile river plains.

• Mesopotamia ("land between rivers" — Tigris & Euphrates, in the Fertile Crescent, modern Iraq). The earliest city-based civilisation. Four successive powers: Sumerian (first cities like Ur; first canal irrigation; cuneiform writing ~3300 BCE; ziggurats = temple-towers; invented the wheeled cart, and the 60-based number system → 60-min hour, 360° circle), Akkadian (Sargon; world's first empire; traded with Meluhha), Assyrian, and Babylonian (Hammurabi, ~1792 BCE, whose Code of Hammurabi was a foundational written law code).
• Egypt (the Nile, whose annual floods left fertile black silt, kemet). City-states ~3000 BCE; pharaohs; pyramids (from mastabas; the Step Pyramid at Saqqara) built for the afterlife (belief in the ka, hence mummification); hieroglyphic writing on papyrus; deciphered via the Rosetta Stone (found 1799, decoded by Champollion, 1822). Egyptian women could own property; Cleopatra ruled.
• China (the Huang He/Yellow River and Yangtze). Urban centres ~1600 BCE; the Shang (1600-1046 BCE) and Zhou (1046-256 BCE) Bronze Age dynasties, then the Iron Age Qin (unified China, gave it its name) and Han. Known from oracle bones; famous for jade, bronze ritual vessels, the Great Wall, silk (the Silk Route), paper currency (a first), and civil service by examination (a first).

[Additional] 4a. Writing, deciphered and undeciphered

[Additional] 4b. India's contributions to early technology

PART 3 — UPSC Integration

This chapter is core GS1 Ancient and World History: human evolution, the Out-of-Africa migration, the Stone Age classification, the Neolithic Revolution, the Harappan (Sindhu-Sarasvati) civilisation, and the Bronze Age civilisations of Mesopotamia, Egypt and China are all directly examinable. Prelims-relevant facts include Mehrgarh, Bhimbetka, Attirampakkam, cuneiform, the Code of Hammurabi, the Rosetta Stone, the Silk Route, and Brahmi/Ashoka. It connects to GS1 Art & Culture (Harappan crafts, rock art, town planning) and to Essay/GS3 (rivers and geography shaping civilisation; evidence-based history).

Exam Strategy

Prelims pointers:

• Evolution sequence: Homo habilis → erectus → sapiens; Homo erectus first left Africa.
• Neolithic Revolution = shift to agriculture/settled life. Mehrgarh = oldest Indian Neolithic site (~7000 BCE); Bhimbetka = rock art.
• Four river-valley civilisations: Sindhu-Sarasvati (Indus), Mesopotamia (Tigris-Euphrates), Egypt (Nile), China (Huang He).
• Cuneiform = Mesopotamia (deciphered); Harappan script = undeciphered; Code of Hammurabi = Babylon; Meluhha = Harappan.
• Rosetta Stone → Champollion (1822) decoded hieroglyphs. Brahmi formalised under Ashoka.

Mains / Essay angles:

• Why the first civilisations arose on river plains (GS1/Essay).
• The Neolithic Revolution as the turning point of human history (GS1).
• What decipherment (or its absence) tells us — the Harappan script problem (GS1).

Practice Questions

Prelims:

1. Which of the following is the oldest known Neolithic (early farming) site in the Indian subcontinent?
   (a) Bhimbetka
   (b) Mehrgarh
   (c) Lothal
   (d) Kalibangan

2. In Mesopotamian records, the name "Meluhha" is generally identified with:
   (a) Egypt
   (b) Bahrain
   (c) The Sindhu-Sarasvati (Harappan) civilisation
   (d) The Yellow River civilisation

Mains:

1. "The Neolithic Revolution laid the foundations of civilisation." Explain how the shift to agriculture transformed human society. (GS1, 10 marks)
2. Compare the Bronze Age river-valley civilisations of Mesopotamia, Egypt, China and the Sindhu-Sarasvati in terms of their common features and distinctive achievements. (GS1, 15 marks)

Sources: NCERT, Understanding Society: India and Beyond — Social Science Textbook for Grade 9, Part 1 (First Edition, June 2026; ISBN 978-93-5729-100-2), Chapter 4 "Early Humans and Beginning of Civilisation"; archaeological sites Attirampakkam, Mehrgarh, Bhimbetka, Kalibangan, Dholavira, Lothal; Mesopotamian, Egyptian and Chinese Bronze Age civilisations; the Code of Hammurabi; the Rosetta Stone (Champollion, 1822).

📦 Revision Capsule