Answer:Petroleum began to displace agriculture as the principal engine driving the economy of the state, and Texans' lives were even more drastically affected than they had been by railroads.
he was appointed to lead an alternative expendition through the American west, exploring areas acquired in the Louisiana purchase
Jackson urged Indians to assimilate and obey state laws. further, he believed that he could only accommodate the desire for Indian self rule in federal territories,which required resettlement west of the Mississippi River on federal lands
the Indian removal act was signed into law by president Andrew Jackson on May 28,1830, authorizing the president to great lands west of the Mississippi in exchange for Indian lands within existing state borders
Singleton,a former slave from Tennessee who had escaped to the north, returned to Tennessee after the civil war with the long dream of helping his fellow former slaves to improve their lives. Singleton encouraged his people to move to Kansas where they would be able to purchase land and establish a better life
The French Revolution showed that the people could overthrow an unjust monarch. These two events inspired revolutions in Latin America, which had profound effects on the Spanish, Portuguese and French colonies in the Americas. The results were the end of colonial rule that had lasted 300 years.
It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.
