Final answer:
The Black Codes were a negative result of the Thirteenth Amendment, creating laws that restricted African American freedoms and led to forced labor and economic disadvantage.
Step-by-step explanation:
One negative result of the Thirteenth Amendment for African Americans was the passage of the Black Codes, which were laws designed to prevent Black people from fully enjoying the freedoms they were supposed to gain after the abolition of slavery. These laws restricted various aspects of life, including property ownership, travel, and voting rights, and led to the unfair arrest and forced labor of African Americans. Additionally, these codes perpetuated a social and economic system that disadvantaged Black people, propelling them into sharecropping and entangling them in cycles of debt.