Shortly after the Revolution, the Northwest Territory was established, by Manasseh Cutler and Rufus Putnam (who had been George Washington's chief engineer). Both Cutler and Putnam came from Puritan New England. The Puritans strongly believed that slavery was morally wrong. Their influence on the issue of slavery was long-lasting, and this was provided significantly greater impetus by the Revolution. The Northwest Territory (which became Ohio, Michigan, Indiana, Illinois, Wisconsin and part of Minnesota) doubled the size of the United States, and it was established at the insistence of Cutler and Putnam as "free soil" - no slavery. This was to prove crucial a few decades later. Had those states been slave states, and their electoral votes gone to Abraham Lincoln's main opponent, Lincoln would not have become president. The Civil War would not have been fought. Even if it eventually had been, the North might well have lost.