Finally, in the Northwest Ordinance of 1787 there was mapped out a scheme of government admirably adapted to the liberty-loving, yet law-abiding, populations of the frontier. It was based on the broad principles of democracy, and it was sufficiently flexible to permit necessary changes as the scattered settlements developed into organized Territories and then into States. Geographical conditions, as well as racial inheritances, foreordained that the United States should be an expanding, colonizing nation; and it was of vital importance that wholesome precedents of territorial control should be established in the beginning. Louisiana, Florida, the Mexican accessions, Alaska, and even the newer tropical dependencies, owe much to the decisions that were reached in the organizing of the Northwest a century and a quarter ago. The Northwest Ordinance was remarkable in that it was framed for a territory that had practically no white population and which, in a sense, did not belong to the United States at all. Back in 1768 Sir William Johnson's Treaty of Fort Stanwix had made the Ohio River the boundary between the white and red races of the West. Nobody at the close of the Revolution supposed that this division would be adhered to; the Northwest had not been won for purposes of an Indian reserve. None the less, the arrangements of 1768 were inherited, and the nation considered them binding except in so far as they were modified from time to time by new agreements. The first such agreement affecting the Northwest was concluded in 1785, through George Rogers Clark and two other commissioners, with the Wyandots, Delawares, Chippewas, and Ottawas. By it the United States acquired title to the southeastern half of the present State of Ohio, with a view to surveying the lands and raising revenue by selling them. Successive treaties during the next thirty years gradually transferred the whole of the Northwest from Indian hands to the new nation.