Yes, it is true that early humans had to endure changes in climate and environment, since things like global warming and cooling, along with major events like the Little Ice Age, meant that the temperatures in the world were changing dramatically.
The mood of the "Beat Generation" is best reflected in A. Jack Kerouac's <em>On the Road. </em><em />Kerouac, Allen Ginsberg, and Lucien Carr were "founders" of the Beat Generation, a literary and social movement following World War II during the onset of the Cold War. Many of their books dealt with the growing interconnectedness of the world, the nuclear threat of the Cold War (and the futility of the present), and resisting the conformity of the 1950s.
Manifest destiny made it to where the united states and americans were trying to expand everywhere, this meant that Americans were also going into other countries land (especially Mexico's) A large group of farmers lead by John Austin made an agreement with Mexico to where they would bring mexicans amd farm Texas. They did not fully comply to all the rules in the agreement. Because the United States had land on the borders of Texas with a strong army and americans already in Texas they basically said this is our land amd started a war ending in the anexation of Texas.
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Well.. what revolutionaries are you talking about? If you mean the American Revolution, they were trying to implement a federal republic that also didn't have a two party system