Among all the causes which led to the establishment of the Constitution of the United States, there is none more important, and none that is less appreciated at the present day, than the inability of the Confederation to manage the foreign commerce of the country. We have seen that, when the Articles of Confederation were proposed for adoption by the States, the State of New Jersey remonstrated against the absence of all provision for placing the foreign trade of the States under the regulation of the federal government. But this remonstrance was without effect, and the instrument went into operation in 1781, with no other restriction upon the powers of the States to regulate trade according to their pleasure, than a prohibition against levying imposts or duties which would interfere with the treaties then proposed. While the war continued, the subject was of comparatively little importance. But the return of peace found this country capable of becoming a great commercial, as well as agricultural nation; and it could not be overlooked, that its government possessed very inadequate means for establishing such relations with foreign powers as would best develop its resources and conduce to its internal harmony and prosperity. How early this great interest had attracted the attention of those who were most capable of enlarged and statesmanlike views of the actual nature of the Union and the wants of the States, there are perhaps as yet before the world no sufficient means of determining. We know, however, that, before the peace, Hamilton saw clearly that it was essential for the United States to be vested with a general superintendence of trade, both for purposes of revenue and regulation; that he foresaw the encouragement of our own products and manufactures, by means of general prohibitions of particular articles and a judicious arrangement of duties, and that this could only be effected by a central authority; and that the due observance of any commercial treaty which the United States might make with a foreign power could not be expected, if the different States retained the regulation of their own trade, and thus held the practical construction of treaties in their own hands.[271]