In one way and another the emancipation movement extended southward to and including Pennsylvania in the later years of the eighteenth century. Nearly all the statesmen of the Revolution looked upon the institution with disfavor and desired its extinction. Thomas Jefferson favored gradual emancipation in Virginia, to be coupled with deportation of the emancipated blacks, because he feared trouble if the two races were placed upon an equality in the then slaveholding states. He labored to prevent the extension of slavery into the new territories, and he very nearly succeeded. In the year 1784 he reported an ordinance in the Congress of the Confederation to organize all the unoccupied territory, both north and south of the Ohio River, in ten subdivisions, in all of which slavery should be forever prohibited, and this ordinance failed of adoption by only one vote. Six states voted in the affirmative. Seven were necessary. Only one representative of New Jersey happened to be present, whereas two was the smallest number that could cast the vote of any state. If one other member from New Jersey had been there, the Jeffersonian ordinance of 1784 would have passed; slavery would have been restricted to the seaboard states which it then occupied, and would never have drawn the sword against the Union, and the Civil War would not have taken place.[5] After the emancipation movement came to a pause, at the southern border of Pennsylvania, the fact became apparent that there was a dividing line between free states and slave states, and a feeling grew up in both sections that neither of them ought to acquire a preponderance of power and mastery over the other. The slavery question was not concerned with this dispute, but a habit grew up of admitting new states to the Union in pairs, in order to maintain a balance of power in the national Senate. Thus Kentucky and Vermont offset each other, then Tennessee and Ohio, then Louisiana and Indiana, then Mississippi and Illinois. In 1819, Alabama, a new slave state, was admitted to the Union and there was no new free state to balance it. The Territory of Missouri, in which slavery existed, was applying for admission also. While Congress was considering the Missouri bill, Mr. Tallmadge, of New York, with a view of preserving the balance of power, offered an amendment providing for the gradual emancipation of slaves in the proposed state, and prohibiting the introduction of additional slaves. This amendment was adopted by the House by a sectional vote, nearly all the Northern members voting for it and the Southern ones against it, but it was rejected by the Senate.