Topic 1: Early Man

1. Introduction

The topic of Early Man traces the evolutionary origin of human beings from primitive ape-like primates to modern humans (Homo sapiens), examining their physical changes, technological advancements, and adaptation to the environment.

2. Theories of Creation and Evolution

1. The Creation Theory: Based on religious scriptures, stating that human beings were created by a supreme supernatural being.
2. The Scientific Theory (Evolution): Popularized by Charles Darwin (On the Origin of Species, 1859), proposing that all living forms evolved from simpler ancestors through natural selection.

3. Stages of Human Evolution (Hominid Development)

a) Primates and Early Proconsul

• Dryopithecus africanus (Proconsul): Lived in trees, walked on all fours, and is considered a common ancestor of apes and humans.

b) Australopithecus (The Southern Ape)

• Lived in South and East Africa about 3 to 4 million years ago.
• Bipedal (walked upright on two legs), small brain capacity (about 400–500 cc), used unrefined pebble tools.
• Examples: Australopithecus afarensis (Lucy), Australopithecus boisei.

c) Homo habilis (Handy Man)

• Lived about 2.5 million years ago.
• Larger brain capacity (approx. 600–700 cc).
• Manufactured the first recognizable stone tools (Oldowan / Pebble tools).

d) Homo erectus (Upright Man)

• Lived 1.5 million years ago; spread out of Africa into Europe and Asia.
• Brain capacity: 750–1250 cc.
• Key Achievements: Discovered and mastered the use of fire, invented Acheulian tools (hand axes, cleavers), and developed complex speech communication.

e) Homo sapiens (Wise Man)

• Modern humans with advanced intellectual capacity (brain size ~1350–1450 cc).
• Divided into Neanderthals, Cro-Magnon, and Homo sapiens sapiens.
• Practiced art, buried their dead, and developed advanced weaponry (microliths).

4. Key Archaeological Sites in East Africa

• Olduvai Gorge (Tanzania): Famous for Zinjanthropus and Homo habilis discovered by the Leakeys.
• Koobi Fora & Lake Turkana (Kenya): Rich in Homo erectus and Australopithecus remains.
• Omo River Valley (Ethiopia): Yielded some of the oldest Homo sapiens fossils.
• Fort Ternan & Rusinga Island (Kenya): Famous for Proconsul fossils.

5. Cultural Evolution: Stone Age Periods

1. Early Stone Age (Lower Paleolithic)

• Characterized by Oldowan and Acheulian tools (pebble tools, hand axes).
• Man was a hunter-gatherer and scavenger, living in caves and tree branches.

2. Middle Stone Age

• Characterized by lighter, sharper, and more specialized tools (spear points, scrapers, blades).
• Man began hunting large game, sewing animal skins, and making fire by friction.

3. Late Stone Age (Upper Paleolithic / Neolithic)

• Characterized by microliths (small composite stone tools attached to bone or wood handles).
• The Neolithic Revolution: Transition from hunting and gathering to agriculture (crop cultivation and animal domestication), leading to settled village life, pottery, and permanent dwellings.