The first years of the decade were marked by the passing of one group of statesmen and the rise of another group. Calhoun's last speech in the Senate was read at the beginning of the debate over those measures which finally took shape as the Compromise of 1850. The Compromise was the last instance of the leadership of Clay. The famous Seventh of March speech in defense of it was Webster's last notable oration. These voices stilled, many others took up the pregnant theme. Davis and Toombs and Stephens and other well-trained Southern statesmen defended slavery aggressively; Seward and Sumner and Chase insisted on a hearing for the aggressive anti-slavery sentiment; Cass and Buchanan maintained for a time their places as leaders in the school of compromise. But from the death of Clay to the presidential election of 1860 the most resonant voice of them all was the voice of Stephen Arnold Douglas. It is scarcely too much to say that during the whole period the centre of the stage was his, and his the most stirring part. In 1861, the curtain fell upon him still resolute, vigorous, commanding. When it rose again for another scene, he was gone so completely that nowadays it is hard for us to understand what a place he had. Three biographers writing near the time of his death were mainly concerned to explain how he came to be first in the minds of his contemporaries. A biographer writing now must try to explain why he has been so lightly esteemed by that posterity to which they confidently committed his fame. Blind Tom, the negro mimic, having once heard him speak, was wont for many years to entertain curious audiences by reproducing those swelling tones in which he rolled out his defense of popular sovereignty, and it is not improbable that Douglas owes to the marvelous imitator of sounds a considerable part of such fame as he has among uneducated men in our time. Among historical students, however seriously his deserts are questioned, there is no question of the importance of his career.