hat the events which, it was thought, would
secure slavery let loose a storm against it. A sign appeared first on
August 6, 1846, only a few months after war was declared on Mexico. On
that day, David Wilmot, a Democrat from Pennsylvania, introduced into
the House of Representatives a resolution to the effect that, as an
express and fundamental condition to the acquisition of any territory
from the republic of Mexico, slavery should be forever excluded from
every part of it. "The Wilmot Proviso," as the resolution was popularly
called, though defeated on that occasion, was a challenge to the South.

The South answered the challenge. Speaking in the House of
Representatives, Robert Toombs of Georgia boldly declared: "In the
presence of the living God, if by your legislation you seek to drive us
from the territories of California and New Mexico ... I am for
disunion." South Carolina announced that the day for talk had passed and
the time had come to join her sister states "in resisting the
application of the Wilmot Proviso at any and all hazards." A conference,
assembled at Jackson, Mississippi, in the autumn of 1849, called a
general convention of Southern states to meet at Nashville the following
summer. The avowed purpose was to arrest "the course of aggression" and,
if that was not possible, to provide "in the last resort for their
separate welfare by the formation of a compact and union that will
afford protection to their liberties and rights." States that had
spurned South Carolina's plea for nullification in 1832 responded to
this new appeal with alacrity--an augury of the secession to come.

[Illustration: _From an old print._

HENRY CLAY]

=The Great Debate of 1850.=--The temper of the country was white hot
when Congress convened in December, 1849. It was a memorable session,
memorable for the great men who took part in the debates and memorable
for the grand Compromise of 1850 which it produced. In the Senate sat
for the last time three heroic figures: Webster from the North, Calhoun
from the South, and Clay from a border state. For nearly forty years
these three had been leaders of men. All had grown old and gray in
service. Calhoun was already broken in health and in a few months was to
be borne from the political arena forever. Clay and Webster had but two
more years in their allotted span.

Experience, learning, statecraft--all these things they now marshaled in
a mighty effort to solve the slavery pro