159
See also: Christopher Columbus reaches America 142–47 ■ The Treaty of Tordesillas 148–51 ■
The voyage of the Mayflower 172 –73 ■ The Slave Trade Abolition Act 226–27
THE EARLY MODERN ERA
highlands of Mexico, eventually
became a fundamental food crop
for tens of millions of settlers. The
arrival of horses in the New World
was also revolutionary, permitting
more effective and selective
hunting, as well as facilitating
travel and transport.
Biological catastrophe
The most immediately devastating
impact of the Columbian Exchange
followed the introduction of new
diseases into the Americas. The
settlers and the chickens, cattle,
black rats, and mosquitoes that
accompanied them introduced
contagious diseases to a people
who had no biological defense
against them. American Indians’
immune systems were not adapted
to cope with alien diseases such
as smallpox, measles, chickenpox,
influenza, malaria, and yellow fever.
Once they were exposed to them,
they began to die in the hundreds
of thousands. Half the Cherokee
nation died in a smallpox epidemic
in 1738, and some other tribes
were wiped out entirely. European
explorers encountered and brought
back American illnesses such as
Chagas Disease, but the effect
on Old World populations was
negligible compared with the
consequences of Old World
pathogens in the New World.
Exchange economics
From the start, the Columbian
Exchange had a strong economic
driver. Commodities ranging from
gold and silver to coffee, tobacco,
and cane sugar were transported
on a vast scale, mostly to the
benefit of European traders and
plantation owners.
Very soon, slave trading became
a key part of this network too. The
movement of people from continent
to continent in vast numbers
provided a continual supply of labor
for expanding new economies at the
cost of unspeakable oppression,
misery, and early death to many
generations. The dramatic and
irrevocable changes brought about
on both sides of the Atlantic by the
Columbian Exchange continued
to shape lives for centuries. ■
Europeans seek
precious metals.
Crops, livestock, and
diseases flow in
both directions.
Europeans introduce
technology, weapons,
and literacy.
The Old
World
imports
and exports
via explorers
and settlers.
The New
World imports
and exports
via Old World
explorers
and settlers.
Columbus’s
arrival in
America
marks the
beginning
of the
Columbian
Exchange.
Cultural exchange
New World peoples were using
stone-age tools, had no wheeled
vehicles, and few domesticated
animals when they encountered
Old World societies, who used
guns and alphabets, farmed
pigs, sheep, and cattle, and kept
bees. The huge cultural changes
that ensued, especially in the
Americas, were complicated by
the two societies’ very different
attitudes to the “ownership” of
nature and property; attitudes
that would have significant
consequences for future
American Indian–European
relations. The arrival of the
horse led to the emergence of a
new, nomadic American Indian
tribe that came to dominate the
southern Great Plains.
Christianity started to spread in
the New World, some elements
of which fused with pre-
Columbian beliefs in the old Inca
and Aztec territories. West
African religion also arrived,
while introductions such as
literacy and metal tools and
machines, brought advances in
education, agriculture, and the
evolution of warfare.
US_158-159_Columbian_exchange.indd 159 15/02/2016 16:42