Why was the barron v. baltimore case in 1833 so important? ?

It helped define the concept of federalism in the constitutional law of the United States.

Explanation:

The Barron v. Baltimore was a landmark Supreme Court case in the history of the United States. This case began when John Barron filed a trial against the city of Baltimore, alleging that the city had denied him of his assets in breach of the 15th Amendment, which grants that the administration may not obtain the private property of an individual without just pay. However, the Supreme Court, in this case, ruled that the Bill of Rights limits only the powers of the federal government and that it did not apply to the state governments.

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some american cities felt workers were being oppressed by business monopolies