Answer:
Jim Crow laws were based on the theory of white supremacy and were a reaction to Reconstruction. In the depression-racked 1890s, racism appealed to whites who feared losing their jobs to blacks. Politicians abused blacks to win the votes of poor white “crackers.”
I'm guessing "overcoming difficult barriers"
They explored Texas cus of our gold riches and wanted to own the Texas land. The only way the Spanish could achieve this was to fight a giants Texas
C. To favor immigration from northern and Western Europe
