The great manufacturing centres are Cleveland, Akron, Cin cinnati, Toledo, Youngstown, Dayton, Columbus, Canton and Springfield. The value of the products of these cities in 1925 amounted to approximately 78% of that for the entire State. A large portion of the iron and steel was manufactured in Cleveland, Youngstown, Steubenville, Lorain, Bellaire, Cleveland Heights, East Youngstown and Irontown. Most of the motor vehicles were manufactured in Cleveland and Cincinnati; most of the cash reg isters and calculating machines in Dayton ; most of the motor tyres and other rubber goods in Akron.
About 1730 English traders from Pennsylvania and Virginia began to visit the eastern and southern parts of the territory and a conflict approached as a French Canadian expedition under Celeron de Bienville took formal possession of the upper Ohio valley by planting leaden plates at the mouth of the principal streams. This was in 1749 and in the same year George II. char
tered the first Ohio company, formed by Virginians and London merchants trading with Virginia for the purpose of colonizing the West. This company, in 1750, sent Christopher Gist down the Ohio river to explore the country as far as the mouth of the Scioto river, and four years later the erection of a fort was begun in its interest at the forks of the Ohio. The French drove the English away and completed the fort (Ft. Duquesne) for themselves. The Seven Years' War was the immediate consequence and this ended in the cession of the entire North-West to Great Britain. The former Indian allies of the French, however, immediately rose up in opposition to British rule in what is known as the conspiracy of Pontiac (see PoNTIAC), and the suppression of this was not completed until Col. Henry Bouquet made an expedition (1764) into the valley of the Muskingum and there brought the Shawnees, Wyandots and Delawares to terms. With the North-West won from the French, Great Britain no longer recognized those claims of her Colonies to this territory which she had asserted against that nation, but in a royal proclamation of Oct. 7, 1763, the granting of land west of the Alleghenies was forbidden and on June 2 2, 1774 parliament passed the Quebec act which annexed the region to the province of Quebec. This was one of the grievances which brought on the Revolutionary War, during which the North-West was won for the Americans by George Rogers Clark (q.v.). Dur ing that war also, those States which had no claims in the West contended that title of these western lands should pass to the Union and when the Articles of Confederation were submitted for ratification in 1777, Maryland refused to ratify them except on that condition. The result was that New York ceded its claim to the United States in i78o, Virginia in 1784, Massachusetts in 1785 and Connecticut in 1786. Connecticut, however, excepted a strip bordering on Lake Erie for 120 m. and containing 3,250,00o acres. This district, known as the Western Reserve, was ceded in 180o on condition that Congress would guarantee the titles to land al ready granted by the State. Virginia reserved a tract between the Little Miami and Scioto rivers, known as the Virginia Military district, for her soldiers in the Revolutionary War. When the war was over and these cessions had been made, a great number of war veterans wished an opportunity to repair their broken for tunes in the West, and Congress, hopeful of receiving a large revenue from the sale of lands here, passed an ordinance on May 20, 1785, by which the present national system of land-surveys into townships 6 m. sq. was inaugurated in what is now south west Ohio in the summer of 1786. In March 1786 the second Ohio company (q.v.), composed chiefly of New England officers and soldiers, was organized in Boston, Mass., with a view to founding a new State between Lake Erie and the Ohio river. The famous North-West Ordinance was passed by Congress on July 13, 1787. This instrument provided a temporary govern ment for the territory with the understanding that, as soon as the population was sufficient, the representative system should be adopted, and later that States should be formed and admitted into the Union. There were to be not less than three nor more than five States.