Steel was important to industrial growth after the civil war because it was used to make steel rails for railroads. <span>n the years between the </span>American Civil War<span> and the end of the nineteenth century the modern U.S. industrial economy developed on the backbone of a good transportation infrastructure mainly railroads that were developed from steel.</span><span>
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It was on <span>January 1, 1863 </span>
Information in the link below:
https://www.history.com/this-day-in-history/germany-resumes-unrestricted-submarine-warfare
They ruled that the freedom of speech protection afforded in the U.S. Constitution's First Amendment could be restricted if the words spoken or printed represented to society a "clear and present danger."
Limiting competition, this is why they're frowned on today.