The headlong haste of both sections was in the year 1850 halted for a time by the sage counsels of such leaders as Clay, in the South, even Webster, in the North. The South claimed, after the close of the Mexican War and the accession of the enormous Spanish territories to the southwest, that the accepted line of compromise established in 1820, by which slavery might not pass north of the parallel of latitude thirty-six degrees, thirty minutes, should be extended westward quite to the Pacific Ocean.