"When the several States delegated certain powers to the United States Congress, a large portion of the laboring population consisted of African slaves, imported into the colonies by the mother-country. In twelve out of the thirteen States, negro slavery existed; and the right of property in slaves was protected by law. This property was recognized in the Constitution; and provision was made against its loss by the escape of the slave. "The increase in the number of slaves by further importation from Africa was also secured by a clause forbidding Congress to prohibit the slave-trade anterior to a certain date; and in no clause can there be found any delegation of power to the Congress, authorizing it in any manner to legislate to the prejudice, detriment, or discouragement of the owners of that species of property, or excluding it from the protection of the Government. "The climate and soil of the Northern States soon proved unpropitious to the continuance of slave labor; whilst the converse was the case at the South. Under the unrestricted free intercourse between the two sections, the Northern States consulted their own interest, by selling their slaves to the South, and prohibiting slavery within their limits. The South were willing purchasers of a property suitable to their wants, and paid the price of the acquisition without harboring a suspicion that their quiet possession was to be disturbed by those who were inhibited not only by want of constitutional authority, but by good faith as vendors, from disquieting a title emanating from themselves. "As soon, however, as the Northern States that prohibited African slavery within their limits had reached a number sufficient to give their representation a controlling voice in the Congress, a persistent and organized system of hostile measures against the rights of the owners of slaves in the Southern States was inaugurated, and gradually extended. A continuous series of measures was devised and prosecuted for the purpose of rendering insecure the tenure of property in slaves. * * * * * "With interests of such overwhelming magnitude imperilled, the people of the Southern States were driven by the conduct of the North to the adoption of some course of action to avoid the danger with which they were openly menaced. With this view, the Legislatures of the several States invited the people to select delegates to conventions to be held for the purpose of determining for themselves what measures were best adapted to meet so alarming a crisis in their history."[72] Alexander H. Stephens, Vice-President, as he was called, said, in a speech delivered at Savannah, Georgia, 21st of March, 1861: