How did the first americans get here

1,650 views

Published on

Published in: Technology, News & Politics
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,650
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
15
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

How did the first americans get here

  1. 1. How did the first Americans get here?<br />
  2. 2. People from Berengia moved to North America. <br />
  3. 3. Where did the water in the Bering Strait go?<br />Huge glaciers more than a mile thick<br />Extended as far South as Illinois and Ohio<br />Earth’s waters were turned to ice, dropping the oceans to hundreds of feet below current levels<br />Receding waters created a land bridge<br />
  4. 4. Refuges are formed due to glaciers<br />
  5. 5. Humans first migrate to South America along the Eastern coast.<br />
  6. 6. The Bering Strait reopens. <br />
  7. 7. Debate over Migration<br />One Migration across Bering Strait<br />*Series of migrations and means of arrival<br />Water travel and “land crossings”<br />
  8. 8. The ancestors of Aleuts, Eskimos, Na-Dene people arrive. Central Canada was populated. <br />
  9. 9. What were the Paleo-Indians like?<br />Pursued large mammals<br />Known as mega fauna<br />Wholly mammoths<br />Mastodons<br />Nomads<br />Moved slowly following prey<br />Small groups<br />Goal was survival<br />Used fire<br />Used tools made of stone<br />
  10. 10. Butchering a Bison<br />Pembina State Museum exhibit from State of North Dakota @ND.gov<br />
  11. 11. Lack of disease<br />Stopped hosting communicable diseases<br />Small pox<br />Measles<br />Small incidences of tuberculosis<br />Physical isolation<br />No contact with domestic animals such as pigs and cattle<br />Lost inherited immunities<br />
  12. 12. The Wholly Mammoth and Mastodons<br />Stood 9 to 11 feet at shoulder<br />Weighed 4 to 6 tons<br />Long hair covered body<br />
  13. 13. Major Paleo-Indian Sites<br />
  14. 14. How do we know about the Paleo-Indians?<br />Archeological evidence<br />Long, fluted, chipped, stone projectiles<br />Used as spears<br />Named Clovis because the spears were found in Clovis, New Mexico first<br />Mammoth and mastodon fossils<br />Burying dead at refuge sites<br />

×