In 1838 and 1839, as part of Andrew Jackson's Indian removal policy, the Cherokee nation was forced to give up its lands east of the Mississippi River and to migrate to an area in present-day Oklahoma. The Cherokee people called this journey the "Trail of Tears<span>," because of its devastating effects.
*</span>The Trail of Tears has become the symbol in American history that signifies the callousness of American policy makers toward American Indians. Indian lands were held hostage by the states and the federal government, and Indians had to agree to removal to preserve their identity as tribes.<span> </span>
Actually the real answer is the second and first world war pouring money into the us economy for output. If that is not an option it would be the invention of the steam engine and the 1800's locomotive industry.
The imperialist and powerful countries that previously owned the African nations have been distracted by the world war, therefore leading the African countries to revolt and state their independence while their imperialist countries were weakened by the war.
