How did the United States change as it expanded westward?

The quest for Western influence contributed to the conquest of Texas and the Mexican-American War in the mid-19th century. This extension led to disputes over the fate of Western slavery, raising tensions between the North and South, leading eventually to the fall of American independence and a bloody civil war.

the renaissance was a historical movement that started in italy but spread through europe, that symbolized the end of the middle age and the beginning of the modern age.

this period in time was characterized by innovation, creativity, imagination and restoration of principles and moral values. in this time, europe classic past history was revisited and put up for debate. it was a social, political, artistic and literary movement that began as an effort to emulate the societies of classic ancient greece and rome.

on a flat and narrow coastal plain, between the foothills of the brazilian highlands and the atlantic ocean, on the shore of guanabara bay, in the state of rio de janeiro, brazil, the tropical zone in south america.