What happened February 1860AD in United States of America

On February 27, 1860, powerful New York Republicans invited Lincoln to give a speech at Cooper Union, in which he argued that the Founding Fathers had little use for popular sovereignty and had repeatedly sought to restrict slavery. He insisted that morality required opposition to slavery, and rejected any "groping for some middle ground between the right and the wrong". Many in the audience thought he appeared awkward and even ugly. But Lincoln demonstrated intellectual leadership that brought him into contention. Journalist Noah Brooks reported, "No man ever before made such an impression on his first appeal to a New York audience".