Why do you think southern states passed black codes

In the United States, the Black Codes were laws passed by Southern states in 1865 and 1866, after the Civil War. These laws had the intent and the effect of restricting African Americans' freedom, and of compelling them to work in a labor economy based on low wages or debt.

Black Codes were laws passed by Southern states in 1865 and 1866, after the These laws had the intent and the effect of restricting African Americans freedom,