Silk Road. (the worlds oldest trade route)
U.S entry into world war II caused the us army to take over the atomic research project being conducted at columbia university in the early 1940s.
Explanation:
Nuclear expedition and atomic research was one of the thrust area during world war II in United States. Two special type of nuclear weapons were generated by them in the year 1940. There was a competition in between Germany and U.S in discovering atomic bomb.
After world war I several concillation measures were taken but nonetheless worked out in its best. That's why world war II happened and U.S also enetred into the battle even after following the principle of neutrality. It compelled them to take atomic research project.
Monroe Doctrine, stating that the United States owns the Americas and anything trying to undermine that power will be prosecuted. This also is the case for the Latin America
<span>Google says :
</span>"The Berlin Wall came to symbolize the vast divide between western culture and values, on the one hand, and Soviet-Communist culture and values, on the other."
Hope this helps !
Photon
The answer is D. "urged immedite emancipation of slaves in the unted states.
