The growth of the West was very rapid in the years immediately succeeding the peace with the Indians and the treaties with England and Spain. As the settlers poured into what had been the Indian-haunted wilderness it speedily became necessary to cut it into political divisions. Kentucky had already been admitted as a State in 1792; Tennessee likewise became a State in 1796. The Territory of Mississippi was organized in 1798, to include the country west of Georgia and south of Tennessee, which had been ceded by the Spaniards under Pinckney's treaty. [Footnote: Claiborne's "Mississippi," p. 220, etc.] In 1800 the Connecticut Reserve, in what is now northeastern Ohio, was taken by the United States. The Northwestern Territory was divided into two parts; the eastern was composed mainly of what is now the State of Ohio, while the western portion was called Indiana Territory, and was organized with W. H. Harrison as Governor, his capital being at Vincennes. [Footnote: "Annals of the West," by Thomas H. Perkins, p. 473. A valuable book, showing much scholarship and research. The author has never received proper credit. Very few indeed of the Western historians of his date showed either his painstaking care or his breadth of view.] Harrison had been Wayne's aid-de-camp at the fight of the Fallen Timbers, and had been singled out by Wayne for mention because of his coolness and gallantry. Afterwards he had succeeded Sargent as Secretary of the Northwestern Territory when Sargent had been made Governor of Mississippi, and he had gone as a Territorial delegate to Congress. [Footnote: Jacob Burnett in "Ohio Historical Transactions," Part II., Vol. I., p. 69.] Ohio Becomes a State.