It is called Imperialism. Please see one example of such policy on the related questions below.
Japan!
sun belt;)
the first two decades of the twentieth century
true
The Hispanic population in the United States more than doubled in the last two decades of the twentieth century, primarily due to high rates of immigration and births among Hispanic individuals.
Underwear made of knitted wool dominated throughout the first two decades of the twentieth century.
In the two decades from 1975 to 1995, Americans increased their pasta consumption by 90 percent.
10 decades in 1 century
Its 10. 10 decades = 1 century.
There are 5 decades in half a century.
There are 20 decades.
no a century is 100 years (10 decades)