November 7, 1857. The constitution would have allowed slavery in Kansas as drafted, but the slavery provision was put to a vote. After a series of votes on the provision and the constitution were boycotted alternatively by pro-slavery settlers and Free-State settlers, the Lecompton Constitution was eventually presented to the U.S. Congress for approval. In the end, because it was never clear if the constitution represented the will of the people, it was rejected. Leavenworth Constitution While the Lecompton Constitution was being debated, a new Free-State legislature was elected and seated in Kansas Territory. The new legislature convened a new convention, which framed the Leavenworth Constitution. This constitution was the most radically progressive of the four proposed, outlawing slavery and providing a framework for women's rights. The constitution was adopted by the convention at Leavenworth on April 3, 1858, and by the people at an election held May 18, 1858 (all while the Lecompton Constitution was still under consideration). President Buchanan sent the Lecompton Constitution to Congress for approval. The Senate approved the admission of Kansas as a state under the Lecompton Constitution, despite the opposition of Senator Douglas, who believed that the Kansas referendum on the Constitution, by failing to offer the alternative of prohibiting slavery, was unfair. The measure was subsequently blocked in the House of Representatives, where northern congressmen refused to admit Kansas as a slave state. Senator James Hammond of South Carolina characterized this resolution as the expulsion of the state, asking, "If Kansas is driven out of the Union for being a slave state, can any Southern state remain within it with honor?" Wyandotte Constitution Following the failure of the Lecompton and Leavenworth charters, a fourth constitution was drafted; the Wyandotte Constitution was adopted by the convention which framed it on July 29, 1859. It was adopted by the people at an election held October 4, 1859. It outlawed slavery but was far less progressive than the Leavenworth Constitution. Kansas was admitted into the Union as a free state under this constitution on January 29, 1861. End of hostilities By the time the Wyandotte Constitution was adopted in October 1859, it was clear that the pro-slavery forces had lost control of Kansas. With this dawning realization and the departure of John Brown from the state, Bleeding Kansas violence virtually ended. The new issue was John Brown's raid on Harpers Ferry, a national event, later that