Technological innovation was the most significant economic and social development of the early twentieth century. Some of these inventions included the typewriter, telephone, and mechanized office equipment.
galbraith
The creation of Factories
Transportation advances. It made things easier for people and goods to move quickly as well as cheaply
Chile
keynes
Black family income increased dramatically.
Adolescence as a separate stage of development was not considered until the twentieth century.
Vatican I occurred during the 19th century, not 20th.
Sergey Diaghilev
Economic growth resulting in a large new middle class
Considered the most important orthopedic development in the twentieth century, arthroscopic surgery is widely used.
Hispanics
galbraith
galbraith
Yes
V. Putin
galbraith