the breaking out of hostilities; but even then we forbore to take redress into our own hands until Mexico herself became the aggressor by invading our soil in hostile array and shedding the blood of our citizens. Such are the grave causes of complaint on the part of the United States against Mexico--causes which existed long before the annexation of Texas to the American Union; and yet, animated by the love of peace and a magnanimous moderation, we did not adopt those measures of redress which under such circumstances are the justified resort of injured nations. The annexation of Texas to the United States constituted no just cause of offense to Mexico. The pretext that it did so is wholly inconsistent and irreconcilable with well-authenticated facts connected with the revolution by which Texas became independent of Mexico. That this may be the more manifest, it may be proper to advert to the causes and to the history of the principal events of that revolution. Texas constituted a portion of the ancient Province of Louisiana, ceded to the United States by France in the year 1803. In the year 1819 the United States, by the Florida treaty, ceded to Spain all that part of Louisiana within the present limits of Texas, and Mexico, by the revolution which separated her from Spain and rendered her an independent nation, succeeded to the rights of the mother country over this territory. In the year 1824 Mexico established a federal constitution, under which the Mexican Republic was composed of a number of sovereign States confederated together in a federal union similar to our own. Each of these States had its own executive, legislature, and judiciary, and for all except federal purposes was as independent of the General Government and that of the other States as is Pennsylvania or Virginia under our Constitution. Texas and Coahuila united and formed one of these Mexican States. The State constitution which they adopted, and which was approved by the Mexican Confederacy, asserted that they were "free and independent of the other Mexican United States and of every other power and dominion whatsoever," and proclaimed the great principle of human liberty that "the sovereignty of the state resides originally and essentially in the general mass of the individuals who compose it." To the Government under this constitution, as well as to that under the federal constitution, the people of Texas owed allegiance.