The deliberations of the Convention were therefore begun with the necessary concession of the fact, that slavery existed in some of the States, and that the existence and continuance of that condition of large masses of its population was a matter exclusively belonging to the authority of each State in which they were found. Not only was this concession implied in the terms upon which the States had met for the revision of the national system, but the further concession of the right to have the slave populations included in the ratio of representation became equally unavoidable. They must be regarded either as persons or as chattels. If they were persons, and the basis of the new government was to be a representation of the inhabitants of the States according to their numbers,--the only mode of representation consistent with republican government,--their precise condition, their possession or want of political rights, could not affect the propriety of including them in some form in the census, unless the basis of the government should be composed exclusively of those inhabitants of the States who were acknowledged by the laws of the States as free. The large numbers of the slaves in some of the States would have made a government so constructed entirely unequal in its operation, and would have placed those States, if they had been willing to enter it,--as they never could have been,--in a position of inferiority which their wealth and importance would have rendered unjustifiable. On the other hand, if the wealth of the States was to be the measure of their representation in the new government, the slaves must be included in that wealth, or they must be treated simply as persons. The slaves might or might not be persons, in the view of the law, where they were found; but they were certainly in one sense property under that law, and as such they were a very important part of the wealth of the State. The Confederation had already been obliged to regard them, in considering a rule by which the States should contribute to the national expenses. They had found it to be just, that a State should be required to include its slaves among its population, in a certain ratio, when it was called upon to sustain the national burdens in proportion to its numbers; and they had recommended the adoption of this fundamental rule as an amendment of the federal Articles.[5] Either in one capacity, therefore, or in the other, or in both,--either as persons or as property, or as both,--the Union had already found it to be necessary to consider the slaves. In framing the new Union, it was equally necessary, as soon as the equality of representation by States should give place to a proportional and unequal representation, to regard these inhabitants in one or the other capacity, or in both capacities, or to leave the States in which they were found, and to which their position was a matter of grave importance, out of the Union.