Our history proves that the fathers of the Republic, in advance of all other nations, condemned the African slave trade. It was, notwithstanding, deemed expedient by the framers of the Constitution to deprive Congress of the power to prohibit "the migration or importation of such persons as any of the States now existing shall think proper to admit" "prior to the year 1808." It will be seen that this restriction on the power of Congress was confined to such States only as might think proper to admit the importation of slaves. It did not extend to other States or to the trade carried on abroad. Accordingly, we find that so early as the 22d March, 1794, Congress passed an act imposing severe penalties and punishments upon citizens and residents of the United States who should engage in this trade between foreign nations. The provisions of this act were extended and enforced by the act of 10th May, 1800.
Again, the States themselves had a clear right to waive the constitutional privilege intended for their benefit, and to prohibit by their own laws this trade at any time they thought proper previous to 1808. Several of them exercised this right before that period, and among them some containing the greatest number of slaves. This gave to Congress the immediate power to act in regard to all such States, because they themselves had removed the constitutional barrier. Congress accordingly passed an act on 28th February, 1803, "to prevent the importation of certain persons into certain States where by the laws thereof their admission is prohibited." In this manner the importation of African slaves into the United States was to a great extent prohibited some years in advance of 1808.
As the year 1808 approached Congress determined not to suffer this trade to exist even for a single day after they had the power to abolish it. On the 2d of March, 1807, they passed an act, to take effect "from and after the 1st day of January, 1808," prohibiting the importation of African slaves into the United States. This was followed by subsequent acts of a similar character, to which I need not specially refer. Such were the principles and such the practice of our ancestors more than fifty years ago in regard to the African slave trade. It did not occur to the revered patriots who had been delegates to the Convention, and afterwards became members of Congress, that in passing these laws they had violated the Constitution which they had framed with so much care and deliberation. They supposed that to prohibit Congress in express terms from exercising a specified power before an appointed day necessarily involved the right to exercise this power after that day had arrived.
If this were not the case, the framers of the Constitution had expended much labor in vain. Had they imagined that Congress would possess no power to prohibit the trade either before or after 1808, they would not have taken so much care to protect the States against the exercise of this power before that period. Nay, more, they would not have attached such vast importance to this provision as to have excluded it from the possibility of future repeal or amendment, to which other portions of the Constitution were exposed. It would, then, have been wholly unnecessary to ingraft on the fifth article of the Constitution, prescribing the mode of its own future amendment, the proviso "that no amendment which may be made prior to the year 1808 shall in any manner affect" the provision in the Constitution securing to the States the right to admit the importation of African slaves previous to that period. According to the adverse construction, the clause itself, on which so much care and discussion had been employed by the members of the Convention, was an absolute nullity from the beginning, and all that has since been done under it a mere usurpation.
It was well and wise to confer this power on Congress, because had it been left to the States its efficient exercise would have been impossible. In that event any one State could have effectually continued the trade, not only for itself, but for all the other slave States, though never so much against their will. And why? Because African slaves, when once brought within the limits of any one State in accordance with its laws, can not practically be excluded from any State where slavery exists. And even if all the States had separately passed laws prohibiting the importation of slaves, these laws would have failed of effect for want of a naval force to capture the slavers and to guard the coast. Such a force no State can employ in time of peace without the consent of Congress.
These acts of Congress, it is believed, have, with very rare and insignificant exceptions, accomplished their purpose. For a period of more than half a century there has been no perceptible addition to the number of our domestic slaves. During this period their advancement in civilization has far surpassed that of any other portion of the African race. The light and the blessings of Christianity have been extended to them, and both their moral and physical condition has been greatly improved.
Reopen the trade and it would be difficult to determine whether the effect would be more deleterious on the interests of the master or on those of the native-born slave. Of the evils to the master, the one most to be dreaded would be the introduction of wild, heathen, and ignorant barbarians among the sober, orderly, and quiet slaves whose ancestors have been on the soil for several generations. This might tend to barbarize, demoralize, and exasperate the whole mass and produce most deplorable consequences.
The effect upon the existing slave would, if possible, be still more deplorable. At present he is treated with kindness and humanity. He is well fed, well clothed, and not overworked. His condition is incomparably better than that of the coolies which modern nations of high civilization have employed as a substitute for African slaves. Both the philanthropy and the self-interest of the master have combined to produce this humane result. But let this trade be reopened and what will be the effect? The same to a considerable extent as on a neighboring island, the only spot now on earth where the African slave trade is openly tolerated, and this in defiance of solemn treaties with a power abundantly able at any moment to enforce their execution. There the master, intent upon present gain, extorts from the slave as much labor as his physical powers are capable of enduring, knowing that when death comes to his relief his place can be supplied at a price reduced to the lowest point by the competition of rival African slave traders. Should this ever be the case in our country, which I do not deem possible, the present useful character of the domestic institution, wherein those too old and too young to work are provided for with care and humanity and those capable of labor are not overtasked, would undergo an unfortunate change. The feeling of reciprocal dependence and attachment which now exists between master and slave would be converted into mutual distrust and hostility.
But we are obliged as a Christian and moral nation to consider what would be the effect upon unhappy Africa itself if we should reopen the slave trade. This would give the trade an impulse and extension which it has never had, even in its palmiest days. The numerous victims required to supply it would convert the whole slave coast into a perfect pandemonium, for which this country would be held responsible in the eyes both of God and man. Its petty tribes would then be constantly engaged in predatory wars against each other for the purpose of seizing slaves to supply the American market. All hopes of African civilization would thus be ended.
On the other hand, when a market for African slaves shall no longer be furnished in Cuba, and thus all the world be closed against this trade, we may then indulge a reasonable hope for the gradual improvement of Africa. The chief motive of war among the tribes will cease whenever there is no longer any demand for slaves. The resources of that fertile but miserable country might then be developed by the hand of industry and afford subjects for legitimate foreign and domestic commerce. In this manner Christianity and civilization may gradually penetrate the existing gloom.