Why was there a need to address / reform civil rights in the U. S. during the 1950s-1960s?

The civil rights movement was a struggle for social justice that took place mainly during the 1950s and 1960s for blacks to gain equal rights under the law in the United States.

Explanation:

The Civil War had officially abolished slavery, but it didn't end discrimination against blacks-they continued to endure the devastating effects of racism, especially in the South. By the mid-20th century, African Americans had had more than enough of prejudice and violence against them.