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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I think you forgot to give the options along with the question. i am answering the question based on my research and knowledge. The European nations were not satisfied with establishing free trade with Africa and Asia during the era of imperialism because <span>European nations wanted monopoly control of markets and resources.</span>
The answer is D. diocletian. Hope this helps!