By 1800 the population of the Northwest Territory had increased and spread over a territory so vast, in centers so widely separated that the administration of government and operation of the courts became very difficult in many instances, and correspondingly ineffective. A reduction of the area and administration at shorter range became desirable, and hence, in the year named, the most thickly populated section in the eastern part was set off from the remainder. This eastern portion, bounded by the treaty line established by General Wayne's treaty with the Indians of the northwest at Greenville, in 1795, comprised the present State of Ohio and the eastern part of Michigan. Until the creation of the State of Ohio, in 1802, this still retained the name of the "Northwest Territory." The western portion, comprising all the rest of the original territory, and extending westward to the Mississippi River and northward to Canada, was reorganized under the name of "Indiana Territory." There were at first three counties - St. Clair, Randolph and Knox, the latter covering all of the present State of Indiana, and the population was given at 6,550 by a census of 1800 (this population is said to have been distributed as follows: At Clark's Grant, 929; in and near Vincennes, 2,497; in the Kaskaskia region, 1,130; Cahokia and other Mississippi River settlements, 1,255. Also there were remote trading settlements at Michillimacinac, Prairie du Chien, Green Bay and other points).