Answer:
Yes, the earlier popular beliefs changed.
Explanation:
The Great Depression was a result of the nonintervention of the government in the economic treats. More than that, the 1920s made everyone understand that overproduction is not the answer and that the government has the duty to inspect what is happening in economics. To care about the production of goods and to maintain the health of economics.
President Polk wanted California but knew Mexico would not agree to sell it and his only avenue was to start a war (knowing the US would win it).
Answer:
There are lots of new land being discovered in Africa in about 29 years.
Just compare the maps