What is significant of the tenth amendment of the u. s. constitution?

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.

the stamp act was passed by the british parliament on march 22, 1765. the new tax was imposed on all american colonists and required them to pay a tax on every piece of printed paper they used. ship's papers, legal documents, licenses, newspapers, other publications, and even playing cards were taxed.