The transcontinental railroad was a key role in the industrial revolution because it was the only way for supplies to get from one part of the country to the other. The train was also the fastest mode of transportation at the time so it was also important for travel. I hope this helped.
Nazi leaders were brought to trial for war crimes committed during world war II
<span>The authorization was issued by president Roosevelt with the Executive Order 9066</span>
The correct answer is <span>remove racial barriers to voting
Although African-American people had the constitutional right to vote, they couldn't vote because they either had literacy test to pass or had poll taxes to pay which they couldn't so they were legally segregated and not allowed to vote. These laws abolished all such practices and all people were given equal voting rights.</span>