Why do historians like eric foner emphasize the long-term significance of the civil war amendments (reconstruction amendments)?

One reason why historians like Eric Foner emphasize the long-term significance of the Civil War Amendments (Reconstruction Amendments) is because they paved the way for the entire Civil Rights movement in the US--and show the strengths and limitations of the federal government itself. 

yes it is important for the three govenrment bodies to work independently as by this the can do better for development and welfare of their country

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