Their first reception in Illinois was one of welcome, for the people of that State believed that they had been persecuted with uncalled-for severity by the citizens and State of Missouri. Under the impulse of this friendly feeling Smith secured a charter from the State, and forthwith began building the city of Nauvoo, on a site which has been universally admired for its great natural beauty. The powers conferred by this charter were very broad, and Smith became virtually emperor of an imperium in imperio. He was mayor of the city, Lieutenant General of the newly created Nauvoo legion, and President of the church. He acquired wide notoriety throughout the country, and became a political factor of no little importance in the State of Illinois. The colony flourished under the impulse of missionary effort, which sent proselytes hither from America and Europe alike. On the 6th of April, 1841, the corner-stone of still another temple was laid.

But the same causes which proved disastrous to the settlements in Ohio and Missouri soon began to operate in Illinois. The people were outraged at the immoral doctrines of the new sect, and alarmed at the arrogant defiance of civil authority by its spiritual and temporal head. Finally an act of violence under Smith’s authority led to his arrest and that of his brother Hyrum, and their confinement in the Carthage jail, under guarantee of safety by the Governor of the State. But a mob was organized which overbore the civil authority, broke into the jail, and slew the brothers in cold blood.

For the future development of the sect, this was the most fortunate event in its history. It set the seal of martyrdom upon the founder of the church; it healed internal dissensions; it intensified the high purpose to succeed; and finally it opened up the career of the one man who above all others was qualified to carry the movement to success. This was that astute and gifted leader of men, prophet Brigham Young.

NO ABIDING PLACE.

A FINAL HOME.

It was now apparent that there was no abiding place for the church upon the soil of the United States, and it was necessary to look beyond. From the narratives of those who had visited the regions west of the Rocky Mountains, Young determined to lead his people to the valley of the Great Salt Lake, at this time a possession of the Mexican Republic. In that remote and benighted wilderness his people could at least have freedom from persecution, for the civil authority of Mexico could scarcely reach so far. The movement was decided upon. Smith had been killed in June, 1844, and the general exodus began in the spring of 1846. In July, 1847, Young laid the foundation of the final home of his people on the shores of the Great Salt Lake.

In the course of this movement large bodies of Mormons remained encamped for long periods on both shores of the Missouri near Council Bluffs and Omaha. This situation became the great rendezvous for the expeditions before starting across the plains, and it was here that the Mormons came into relation with the steamboat traffic of the Missouri. Large quantities of freight and great numbers of passengers were brought up and disembarked here. The Saluda, whose tragic fate we have elsewhere described, was loaded with Mormons. In 1851 the steamer St. Ange carried up two hundred of these people, and the Sacramento four hundred. Many other boats, for fully a decade after 1846, brought up passengers and freight destined to the distant colony in the heart of the Rocky Mountains.

WAR WITH MEXICO.

Another of the great movements of the time, which gave a marked impetus to Missouri River navigation, was the War with Mexico. This great event—great not so much in its battles as in its far-reaching results—had been gathering force for years. The influx of American settlers into the province of Texas caused the Mexican Government to adopt repressive measures toward them. This led to successful revolution on the part of Texas, and her independence was finally won by force of arms in 1836. For the next ten years Texas was practically an independent republic seeking annexation to the United States. The question of annexation was the determining issue in the national election of 1844, and the pro-annexationists prevailed. Texas was annexed in the spring of 1845, and in the following December was admitted as a State, against the protest of the Mexican Government. The administration ordered American troops to occupy certain disputed territory claimed by both Mexico and Texas. Collision with the Mexican troops followed: blood was shed, and the United States declared war.

Among the minor operations of the war from a military point of view, but of transcendent importance in their results, were the conquests of New Mexico and California under Harney, Doniphan, and Fremont. All the country so won became a part of the United States. It lay in the pathway of emigration to the West, and must sooner or later have given rise to grave complications. The inevitable issue was precipitated sooner than was expected, but the result must ultimately have been the same. The importance of this acquisition in the history of the nation cannot be overestimated.