This quote is referring to the Supreme Court case New State Ice Company vs. Liebmann.
This court case resulted from the New State Ice Company suing Liebmann for selling ice without a permit. Selling ice without a permit broke an Oklahoma state law, hence why the company brought Liebmann to court.
The quote from above was from the dissenting opinion and references the idea that states can be "laboratories for democracy." This means that states should have the ability to test out laws like this to assess their effectiveness.
Series of locks along a canal work like an escalator to help raise and lower boats up and down hills
Progressivism is the result of the modernization in the society. Progressive movement aimed at eradicating dishonesty and they believed in a positive Government which is purely democratic and worked for the welfare of the people. Local grandees started to exert their influence in creating a Government. This was abolished by the progressives.
In the period of progressivism many antitrust laws came into existence which aimed at fair trade and removed monopolies.
Progressive thinkers sought that the education is a natural right and every human must be made a literate. To improve the quality of education, schools were modernized and use of technology was at its peak.
Answer: fire-eaters
Explanation: The fire-eaters had been hard-line defenders of slavery, who, in June 1850, convened a Southern rights conference in Nashville, Tennessee, "to plot and undertake a few-mode of resistance to Northern aggression."
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