The invention of the railroads helped pour immigrants from Eastern Europe.
The development of steamships reduced passage time from weeks to days, in the case of the fastest ships, while the expansion of railroads across Europe in the middle of the 1800s significantly reduced travel time to embarkation ports. The size of the ships also expanded; some of them could accommodate more than 1,000 immigrants in steerage. They had to go by the river to reach Hamburg, one of the major ports of the time, before the development of railroads. This was inconvenient and took a few days. About 30 million Europeans immigrated to the United States between 1815 and 1915. Travel across the country used to cost close to $1,000 before the Transcontinental Railroad was built. The cost significantly decreased once the railroad was finished.
Immigration, Transcontinental Railway, Seaports, Poor immigrants
To read more on European immigration via railroad brainly.com/question/9804430
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A is the answer. The first Bull Run was early in the war, and much of the North was convinced it would end quickly-people had even brought out chairs to watch the firefight. However, their visions were soon shattered.
B is wrong: the South had plenty of troops, and even if it did not, Bull Run was no indication.
C is wrong: Bull Run was a failure for the North, so it would not indicate to Lincoln that the North was overstocked on troops.
Similarly, D is wrong: the war actually would take longer.
The answer is B, C, and E
