Those who believed that compromises were curatives rather than means of temporary relief as we now see them, must have found hope for the future in the number of compromises in the convention caused by slavery. As the years sped by under the Constitution, and the menace failed to renew its formidable shape, these hopes must have brightened into a belief that the spectre was laid for ever. The expiration of the twenty years demanded by South Carolina and Georgia in which to get their supply of slave labour from Africa drew nigh, and brought forth a prohibitory law to take effect the first day of the year 1808. The newer Gulf States in vain demanded an extension of the open door to place them upon an equal footing with the older States. Yet the law was never enforced, and it was always possible to get a fresh supply of slaves even to the time of the Civil War. The blame must be shared equally by the planters of the Gulf States, who purchased the new slaves, and by the ship-owners of the free States, whose vessels brought them from Africa for the profit of the trade. Cupidity will be found, in the last analysis, to be at the bottom of much of the law-breaking spirit so unfortunately characteristic of the American people. The Friends kept up an unceasing petition to Congress to ameliorate the condition of the slaves or to emancipate them. It was said by some of the British advocates of emancipation, who began to let their voices be heard in the States, that the destruction of the public buildings at Washington during the War of 1812 was a judgment of God upon a people who permitted a slave market almost within the shadow of the Capitol. Slavery was always at base an economic question and was now awaiting some national economic issue before it would manifest its ugly self. The emancipation plans which had been adopted by the Northern States were emphasising slavery as a sectional issue. It would make even more difficult the task of balancing the two sections. So rapidly had public sentiment accepted the inevitable in the matter of sections, that by 1820 it was easy to repeat the fearful phrase, "preserving the balance between the two sections."