Final answer:
Thurgood Marshall was incredibly instrumental in the fight for African American Civil Rights in the courts. He played a key role in the landmark case Brown v. Board of Education and later became the first African American justice on the Supreme Court.
Step-by-step explanation:
The person who was incredibly instrumental in the fight for African American Civil Rights in the courts was Thurgood Marshall. Thurgood Marshall was incredibly instrumental in the fight for African American Civil Rights in the courts. He played a key role in the landmark case Brown v. Board of Education and later became the first African American justice on the Supreme Court.
Marshall was a lawyer and civil rights activist who played a key role in the landmark case Brown v. Board of Education, in which the U.S. Supreme Court ruled that racial segregation in public schools was unconstitutional. He later became the first African American justice on the Supreme Court.