1. Discovery and Exploration
Dr. Romero

2. • I. Early Migrants
• Background of land
– Oldest rock dates back (3 billion years ago)
– Pangaea
• Break up 180 million years continental drift process
• 1st human beings
– Ancestors evolved in Africa
• 5 million years ago

3. – Homosapians began migration
• 300,000-100,000 years ago
• Cultural changes
– Abstract thinking
– Fire, tools, clothing
– Race
» Types
» Caucasian,Mongoloid,
»
Negroid
– Pleistocene Ages
• 4 ice ages ( 2 million-10,000 year)
– Major movement
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Bering strait-land bridge
Paleo-Indian ( 12,000-8,500 B.C.E)
Way of life
Languages ( Amerind, Nadene, Inuit)