As we know, when Missouri applied for admission into the Union, the slavery question was discussed and finally settled by the so-called "Missouri Compromise" in 1820. Now, in 1849, a new question began to agitate both North and South. Before that time the debate had been as to the abolishing of slavery, but the question now changed to "Shall slavery be extended? Shall it be allowed in the country purchased from Mexico?" As this land had been made free soil by Mexico, many people in the North insisted that it should remain free. The South insisted that the newly acquired country was the common property of the States, that any citizen might go there with his slaves, and that Congress had no power to prevent them. Besides this, the South also insisted that there ought to be as many slave States as free States. At that time the numbers were equal--fifteen slave States and fifteen free. Some threats were made that the slaveholding States would leave the Union if Congress sought to shut out slavery in the territory gained from Mexico. That a State might secede, or withdraw from the Union, had long been claimed by a party led by John C. Calhoun, of South Carolina. Daniel Webster had always opposed this doctrine and stood as the representative of those who held that the Union could not be broken. Now, in 1850, Henry Clay undertook to end the quarrel between the States, and as a result there was a famous debate between the most notable living orators, Webster, Calhoun, and Clay, and a new compromise was made. It was called the Compromise of 1850, and it was confidently hoped would be a final settlement of all the troubles growing out of slavery. But it was not. With slow and increasing bitterness the feeling rose in both North and South over the mooted question, and slowly but surely events moved on toward the great crisis of 1860, when Abraham Lincoln was elected President of the United States. "The Southern States had been hoping that this might be prevented, for they knew that Lincoln stood firmly for the abolition of slavery in every State in the Union, and that he was not a man to compromise or falter when he believed in a principle. So as soon as he was elected the Southern States began to withdraw from the Union, known as the United States of America. First went South Carolina, then Georgia, Florida, Alabama, Mississippi, and Louisiana. Then delegates from these States met in Montgomery, Alabama, and formed a new Union which they called the 'Confederate States of America,' with Jefferson Davis as its President. Then Texas joined the Confederacy, and events were shaping themselves rapidly for an inevitable culmination.