The plan of this work is easily explained. The first volume embraces the Constitutional History of the United States from the commencement of the Revolution to the assembling of the Convention of 1787, together with some notices of the principal members of that body. The second volume is devoted to the description of the process of forming the Constitution, in which I have mainly followed, of course, the ample Record of the Debates preserved by Mr. Madison, and the official Journal of the proceedings.[1] The period of our history from the commencement of the Revolution to the beginning of Washington's administration is the period when our State and national institutions were formed. With the events of the Revolution, its causes, its progress, its military history, and its results, the people of this country have long been familiar. But the constitutional history of the United States has not been written, and few persons have made themselves accurately acquainted with its details. How the Constitution of the United States came to be formed; from what circumstances it arose; what its relations were to institutions previously existing in the country; what necessities it satisfied; and what was its adaptation to the situation of these States,--are all points of the gravest importance to the American people, and all of them require to be distinctly stated for their permanent welfare. For the history of this Constitution is not like the history of a monarchy, in which some things are obsolete, while some are of present importance. The Constitution of the United States is a living code, for the perpetuation of a system of free government, which the people of each succeeding generation must administer for themselves. Every line of it is as operative and as binding to-day as it was when the government was first set in motion by its provisions, and no part of it can fall into neglect or decay while that government continues to exist.