It is called Imperialism. Please see one example of such policy on the related questions below.
Japan!
true
the first two decades of the twentieth century
sun belt;)
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.
One century is equal to 10 decades, so 1 century is bigger than 8 decades. Specifically, 8 decades amount to 80 years, while a century consists of 100 years. Therefore, a century surpasses 8 decades by 20 years.
There are 5 decades in half a century.
Things changed slowly during the first two decades of the twentieth century, as women's ready-to-wear clothes encountered wider social acceptance.