It marked the emergence of the United States as a world power.
Popular culture in the United Sates has greatly impacted other cultures in that it has spread "modern" entertainment and values, along with technology such as the iPhone.
Allocating governmental authority among three separate branches also prevented the formation of too strong a national government capable of overpowering the individual state governments. In order to modify the separation of powers, the framers created a best-known system—checks and balances.
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The Atlantic Charter was the document that stated the Allies' war aims, including belief in the four fundamental freedoms (freedom of speech, freedom of worship, freedom from want, freedom from fear) and condemnation of Nazism. It also called for a new association of nations. The Atlantic was made prior to the U.S.'s entry into WWII.
Because the Incas were very behind in their warfare and military tactics, as well as lack of weapons. Their spears,slings and clubs could were no match against bullets, crossbows, swords and steel armor.