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HOW THE SECOND EARTH BEGAN

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Big game hunters living in northeastern Siberia followed herds of mastodons, ... never seen fruits and vegetables like, avocados, squash, melons, and tomatoes. ... – PowerPoint PPT presentation

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Title: HOW THE SECOND EARTH BEGAN


1
HOW THE SECOND EARTH BEGAN
BY NANCY CANNADY
2
WAS IT 20,000 OR MORE YEARS AGO?
Big game hunters living in northeastern Siberia
followed herds of mastodons, mammoths, caribou,
and horses, across Beringia, a great shelf of
land now under water, that connected Siberia and
Alaska during the Ice Age.
3
BIG GAME HUNTERS DO NOT CARRY BOATS WITH THEM, SO
THEY MUST HAVE COME BY LAND.
We know that the original Americans were
immigrants to the second earth rather than
natives because there was no trace of any
hominids (any of the family of a primate order).
4
THEY CAME FROM ASIA
American Indians have more features in common
with East Asians.
5
DID AGRICULTURE COME BY WAY OF THE PACIFIC OCEAN
FROM POLYNESIA?
DID IT COME BY WAY OF CHINA ON OCEANGOING CANOES
BLOWN OFF COURSE BY THE WIND?
DID AGRICULTURE COME BY BOATS THAT WERE BLOWN
ACROSS THE ATLANTIC OCEAN FROM EUROPE?
6
NO! THIS COULD NOT HAVE HAPPENED
They had never seen fruits and vegetables like,
avocados, squash, melons, and tomatoes.
They had never seen grains like maize, legumes,
black beans, string beans, and lima beans.
7
Did they simply bring the knowledge?
This might have been the answer except that it
took thousands of years for the process of
domesticating native American plants . Before
3000 B.C. , maize cobs were less than an inch
long and had just a few rows of tiny kernels.
8
2000 YEARS LATER
Corn cobs had reached modern dimensions, with
their enlarged kernels so firmly fixed to the cob.
9
IT COULDNT HAVE BEEN
BETWEEN 7000 B.C. AND 5000 B.C. FORAGERS IN THE
MEXICAN HIGHLANDS WERE ALREADY PLANTING BEANS,
SQUASH, CHILI PEPPERS, AND AVOCADOS AS
SUPPLEMENTS TO THEIR WILD FOODS. CHINESE WERE
JUST BEGINNING TO ADOPT A NEOLITHIC WAY OF LIFE
AND SO THEY COULD NOT HAVE ADDED ANYTHING TO WHAT
SECOND-EARTH PEOPLE ALREADY KNEW.
10
YALIS QUESTION??????
DIAMOND CALLS THIS THE GREAT LEAP FORWARD.
WHY DID HUMAN DEVELOPMENT PROCEED AT SUCH
DIFFERENT RATES ON DIFFERENT CONTINENTS?
DID POPULATION DENSITY CAUSE PEOPLE TO DEVELOP
BETTER MEANS OF PRODUCTION?
11
ENVIRONMENT
THE NEED TO DRAW ENERGY OUT OF THE ENVIRONMENT IN
ORDER TO SATISFY THE BIOLOGICAL NEEDS OF ITS
PEOPLE IS THE FIRST AND CENTRAL TASK OF ANY
SOCIETY.
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