-Scientists disagree about how long people have been on earth
- 40,000years to 2 million
1 discoveries in Africa
2 Tanzania – acehaeologists found remains that may be million years old
3 Also found tools – stone with charpedges
4 Technology – the use of skills and tools to meet practical needs
5 Stone tools found in the great rift valley in tanzania
6 Old stone age the period of human prehistory that lasted until about 12000 years ago during which stone tools were the most common technology used by humans
7 Remains of ancient animal bones found with the stone tools suggest that early people hunted for survival
8 Technology of firebuilding made it possible to cook food for the first time and people could more into colder climates
9 Border cave – Zululand on the northeastern tip of south Africa
10 Border cave people
11 Lined the caves dirt floor with grass for bedding
12 Made campfires to cook on and to cook on and to light the caves drakes
13 Traveled far to......

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Title: How Long Have People Been On Earth
Approximate Word Count: 268
Approximate Pages: 2 (250 words per double-spaced page)

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