Olduvai Gorge — 2019 Paper I

Approach

• Demand of Question: Explain the archaeological and palaeoanthropological importance of Olduvai Gorge in understanding human evolution.
• Structuring the Response: Locate the site, discuss major fossil and archaeological discoveries, and establish its chronological and evolutionary significance.
• Key Dimensions to Cover: Tanzania, Louis and Mary Leakey, Oldowan, Homo habilis, Paranthropus boisei, Acheulean and stratigraphy.

Model Answer

Introduction: Olduvai Gorge, located in northern Tanzania within the East African Rift system, is one of the world’s most important palaeoanthropological sites. Research by Louis and Mary Leakey established its significance for reconstructing early hominin evolution and stone-tool technology.

Major discoveries:

1. Paranthropus boisei: Mary Leakey discovered the robust hominin skull originally called Zinjanthropus boisei in 1959.
2. Homo habilis: Fossil remains attributed to Homo habilis strengthened evidence for early members of the genus Homo in East Africa.
3. Oldowan industry: The lower archaeological levels contain characteristic:
   • cores;
   • choppers;
   • flakes.

This simple stone technology became known as the Oldowan tradition.

1. Acheulean development: Later levels contain handaxes and other Acheulean tools, demonstrating technological change through time.
2. Stratigraphic importance: Volcanic deposits and well-defined sedimentary beds permit relatively secure chronological correlation of fossils and artefacts.

Thus:

Stratigraphy → Fossils + Tools → Behavioural and evolutionary sequence

Significance: Olduvai demonstrates the association of different hominins with changing technologies and environments over a long period.

Conclusion: Olduvai Gorge remains crucial for understanding early Homo, Oldowan technology, Acheulean development and the African foundations of human evolution.