Turbulence outside was accompanied by turbulence within. Schisms occurred. Branches were broken off from the Church. The great temporal power and wealth to which, owing to the obedience and docility of the rank and file, the leaders had fallen practically sole heirs, had gone to their heads. The Mormon Church gave every indication of breaking up into disorganized smaller units, when fortunately for it the prophet Joseph Smith and his brother Hyrum were killed by a mob. This martyrdom consolidated the church body once more; and before disintegrating influences could again exert themselves, the reins of power were seized by the strong hand of a remarkable man, Brigham Young, who thrust aside the logical successor, Joseph Smith's son.
Young was an uneducated man, but with a deep insight into human nature. A shrewd practical ability and a rugged intelligence, combined with absolute cold-blooded unscrupulousness in attaining his ends, were qualities amply sufficient to put Young in the front rank of the class of people who composed the Mormon Church. He early established a hierarchy of sufficient powers so that always he was able to keep the strong men of the Church loyal to the idea he represented. He paid them well, both in actual property and in power that was dearer to them than property. Furthermore, whether or not he originated polygamy, he not only saw at once its uses in increasing the population of the new state and in taking care of the extra women such fanatical religions always attract, but also, more astutely, he realized that the doctrine of polygamy would set his people apart from all other people, and probably call down upon them the direct opposition of the Federal Government. A feeling of persecution, opposition, and possible punishment were all potent to segregate the Mormon Church from the rest of humanity and to assure its coherence. Further, he understood thoroughly the results that can be obtained by coöperation of even mediocre people under able leadership. He placed his people apart by thoroughly impressing upon their minds the idea of their superiority to the rest of the world. They were the chosen people, hitherto scattered, but now at last gathered together. His followers had just the degree of intelligence necessary to accept leadership gracefully and to rejoice in a supposed superiority because of a sense of previous inferiority.