The Black Codes ensured work for blacks by making them sign a waiver saying they would work for at least one year (Black Codes). Even though the Union had emerged victorious and four million slaves had been legally freed, blacks still faced many Americans who discriminated against them and wanted to make things worse (Black Codes). During the Reconstruction period, many new amendments were created, including the 13th, 14th, and 15th Amendments. The 13th Amendment outlaws slavery. Some whites did not want to follow this path and tried to circumvent it by creating black codes. The 14th Amendment states that black men are citizens and the 15th states that black men can vote. The Emancipation Proclamation may have declared that slaves were free, but that didn't mean all Americans believed it. All of blacks' progress toward freedom caused the outbreak of a revolution in the South. This can be compared to how Huck changed his views on Jim when almost everyone else did not. Huck also knew that if anyone knew he had helped a black man, he would report them as well. The South was afraid of what might happen if blacks lived among them as equals.