Early in 1847 he spoke with such severity, at an indignation meeting in Faneuil Hall, that his life was threatened by drunken volunteers. Other preachers that year in Massachusetts followed his example so generally as to win praise from the Garrisonians, as well as from the most patriotic abolitionists; and great effect was produced by his _Letter to the People_, which showed, early in 1848, that slavery was ruining the prosperity, as well as the morals, of the South. More about his work may be found in Chapter V. There we shall see how active the Transcendentalists were in carrying on the revolt begun by Channing. The most important victory for liberty recorded in this chapter was that of 1844 over the protectionists. The defeat of the Garrisonians was due largely to their mistakes; and there was urgent need of a new anti-slavery movement on broader ground. CHAPTER IV. EMANCIPATION THE revolutionary movements of 1848 did much to encourage love of liberty in America, where the anti-slavery agitation was now becoming prominent in politics. The indignation against the Mexican war increased as it was found that nothing would be done to keep the promise of 1844, that Great Britain should be excluded from the Pacific. The purpose of the South, to enlarge the area of slavery but not that of freedom, was so plain that the northern Democrats proposed the Wilmot Proviso, by which slavery would have been forbidden in all territory acquired from Mexico; and they actually carried it through the House of Representatives, with the help of the Whigs, in 1846. Similar action was taken by the legislatures of New York, Ohio, Pennsylvania, Delaware, and seven other States. The Senate was so unwilling to have slavery prohibited anywhere as to oppose, merely on this account, a bill for giving a territorial government to Oregon.