The power to acquire territory for the purpose of colonization or the creation of States was not expressly granted to the Federal government, either by the Articles of Confederation or by the Constitution, but it has been largely exercised under both systems of government. The acts of the government of the Confederation in accepting cessions from several of the States of unoccupied territory, claimed by them in the west, and organizing territorial governments therein, were declared in 1788, by as high authority as James Madison, to be "_without the least color of constitutional authority_." But as has been the case with many other usurpations of the Federal and other governments, the value of the ends to be attained seems to have justified the usurpation in the public mind. The territory acquired by Congress under the Confederation was territory which was claimed by or belonged to certain of the original States. The territory acquired under the Constitution has been foreign territory. Louisiana was acquired in 1803 from France, Florida in 1819 from Spain, Texas in 1846 by annexation as a State, a portion of Oregon in 1846 by a boundary treaty, and a large territory including New Mexico, Utah and California by treaty with Mexico in 1848. The purchase of Louisiana was a measure of Mr. Jefferson, but so serious were his doubts as to the constitutionality of the purchase, that he advised an amendment of the Constitution, but no such amendment was attempted, and the purchase was finally made and acquiesced in, upon the principle that the end justified the means. It seems now, however, to be generally conceded that the power of the Federal government to acquire territory, exists by implications either in the treaty making power or in the power to admit new States. In view of the only legitimate end and purpose of all such acquisitions, it is natural to look upon the power of acquiring as an incident of the power to admit new States. The right or claim of some of the States, viz: New York, Virginia, Massachusetts, Connecticut, North Carolina, South Carolina and Georgia to a vast extent of waste and unoccupied territory, as embraced in their original charters or territorial limits, was a subject of serious concern in the Congress of the Confederation, and constituted for some time the only obstacle to the ratification of the Articles of Confederation. Delaware, Maryland and New Jersey, which had no such territory, were especially jealous on this subject, the two former peremptorily insisting upon the restriction of the boundaries of such of the States as claimed to extend to the Mississippi River or South Sea, to moderate limits, and that the property in the soil of the western territories should be held by the Federal government for the common benefit of all the States, as the same, to use the language of Delaware, "_had been gained by the blood and treasure of all_."