During the **colonial era**
<span>The invention of tools and mastery of fire led to the development of "advanced civilizations," since this allowed for early humans to gain far more food sources and intake more calories. </span>
Answer:
Hi, The correct answer is...
C.
Explanation:
Hello
The correct answer is Isolationism
Becasue isolationism is where a country does not let anyone in or out of its borders and it does not participate in worldly afairs. It also has isolation in the name and the definition of isolation is the process or fact of isolating or being isolated.
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Berlin wall was built in August 13, 1961
April 12, 1961 bay of pigs invasion
October 30, 1956 Suez crisis
