The Columbian exchange of crops affected both the Old World and the New. Amerindian crops that have crossed oceans—for example, maize to China and the white potato to Ireland—have been stimulants to population growth in the Old World. The latter’s crops and livestock have had much the same effect in the Americas—for example, wheat in Kansas and the Pampa, and beef cattle in Texas and Brazil. The full story of the exchange is many volumes long, so for the sake of brevity and clarity let us focus on a specific region, the eastern third of the United States of America.
Modern era or period refers to a time after post-classical history. It can be divided in the early era (16 Th. century) and late modern era (18 Th. century).
Some examples of historical facts in the late modern era are American, French and Russian Revolution and the Industrial Revolution.
The spread of coal-powered factories has been characteristic of the modern era because coal was used to heat buildings, generate electricity and for steam engines. It generates energy for industry and transportation.
D. The fourteenth amendment
The correct order is:
<span>C. Soviet Union begins a war with Afghanistan
</span><span>E. Mikhail Gorbachev becomes the leader of the Soviet Union
</span><span>A. Reforms such as glasnost and perestroika instituted in Soviet Union.
</span><span>D. Soviet government attempts to overthrow Mikhail Gorbachev
</span><span>B. Boris Yeltsin becomes president of the established Russian Federation</span>
