Final answer:
The legislation passed by the Radical Republicans during Reconstruction, including the Civil Rights Act of 1866, the Fourteenth Amendment, and the Reconstruction Acts of 1867, had a significant impact on extending civil rights and ensuring equal protection under the law for all citizens.
Step-by-step explanation:
The legislation passed by the Radical Republicans during Reconstruction had a significant impact. The Civil Rights Act of 1866 established the citizenship of African Americans and gave the federal government the right to intervene in state affairs to protect their rights. The Fourteenth Amendment, ratified in 1868, guaranteed equal protection under the law and extended civil rights to all citizens. Additionally, the Reconstruction Acts of 1867 divided the southern states into military districts and set new requirements for voting and drafting state constitutions.