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Years of Crisis, 1919–1939
Previewing Main Ideas
In the 1920s, new scientific ideas changed
the way people looked at the world. New inventions improved transportation
and communication.
GeographyInnovations in transportation allowed pilot Charles Lindbergh
to fly solo from North America across the Atlantic Ocean. Toward what
continent did Lindbergh fly?
The collapse of the American economy in 1929 triggered a
depression that threatened the economic and political systems of countries
throughout the world.
GeographyStudy the map and time line. What events occurred after the
economic crisis that changed the balance of world power?
In the 1930s, several countries—including Japan,
Germany, and Italy—adopted aggressive, militaristic policies.
GeographyWhat land did Germany invade in 1939?
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