Answer:
Their success was limited by state governments, but they were the basis for later civil rights activism
Explanation:
Historians like Eric Foner emphasize the long-term significance of the Civil War Amendments because in trying to understand the formation and establishment of rights and freedom of the colored people, they realized the significance of these amendments and that "Civil War Amendments are otherwise known as Reconstruction Amendments, even though its success was limited by the state governments, they were the basis for later civil rights activism."
The Reconstruction Amendment includes the 13th, 14th, and 15th Amendment, of which all of them focused on the freedom and rights of the colored people.