The Spanish was not involved in the Crusades they just discovered countries<span />
Answer: discrimination by state officials in voter registration on the basis of race, color, or previous condition of servitude.
Explanation:
Aside from connecting the East U.S. to the West U.S., the transcontinental railroad was also instrumental in driving a gap through the confederate territories and ending the reconstruction era. (Choices A and D are the answers.)
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In order to maximize profits ,many businessmen in the 19th century resorted to unethical business practices and thus earned the name robber barons.
They did not physically rob people but they stole control over natural resources, paid unfairly low wages and pushed out their competition using questionable business practices .
While their practices weren't viewed as ethical, most of the 19th century robber barons didn't commit any illegal acts, though through their actions, new laws were enacted to prevent others from following their actions.