AT&T held a monopoly in the US and Canada, throughout most of the 20th century. AT&T was the owner of the Bell System, a network of telecommunications companies which included Western Union Telegraph. For many years the slogan of the company was "One Policy, One System, Universal Service."
However antitrust regulators were not happy with AT&T and in 1974, the United States Justice Department opened a case against the company, arguing they were violating the antitrust law. This case was settled in 1982, and the company was order to break up. Hence AT&T was divided into seven Regional Bell Operating Companies.
The Corpus Juris Civilis, the founding document for many European law codes, is most closely associated with the Magna Carta, which came far before it.
You spelled significance wrong
humanism is a philosophical and ethical stance that emphasizes the value and agency of human beings, individually and collectively, and generally prefers critical thinking and evidence (rationalism and empiricism) over acceptance of dogma or superstition.
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The Tenth Amendment declares, "The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people." In other words, states have all powers not granted to the federal government by the Constitution.