But although this clause of the Articles of Confederation is the same in principle with that inserted in the Constitution, yet the comprehensive word _inhabitant_, which might be construed to include an emancipated slave, is omitted; and the privilege is confined to _citizens_ of the State. And this alteration in words would hardly have been made, unless a different meaning was intended to be conveyed, or a possible doubt removed. The just and fair inference is, that as this privilege was about to be placed under the protection of the General Government, and the words expounded by its tribunals, and all power in relation to it taken from the State and its courts, it was deemed prudent to describe with precision and caution the persons to whom this high privilege was given--and the word _citizen_ was on that account substituted for the words _free inhabitant_. The word citizen excluded, and no doubt intended to exclude, foreigners who had not become citizens of some one of the States when the Constitution was adopted; and also every description of persons who were not fully recognised as citizens in the several States. This, upon any fair construction of the instruments to which we have referred, was evidently the object and purpose of this change of words. To all this mass of proof we have still to add, that Congress has repeatedly legislated upon the same construction of the Constitution that we have given. Three laws, two of which were passed almost immediately after the Government went into operation, will be abundantly sufficient to show this. The two first are particularly worthy of notice, because many of the men who assisted in framing the Constitution, and took an active part in procuring its adoption, were then in the halls of legislation, and certainly understood what they meant when they used the words "people of the United States" and "citizen" in that well-considered instrument. The first of these acts is the naturalization law, which was passed at the second session of the first Congress, March 26, 1790, and confines the right of becoming citizens "_to aliens being free white persons_." Now, the Constitution does not limit the power of Congress in this respect to white persons. And they may, if they think proper, authorize the naturalization of any one, of any color, who was born under allegiance to another Government. But the language of the law above quoted, shows that citizenship at that time was perfectly understood to be confined to the white race; and that they alone constituted the sovereignty in the Government.