She wrote letters to ministers and others on liberty freedom
Answer:
slavery
Explanation:
Just before the Civil War, there were 19 free states and 15 slave states. During the war, slavery was abolished in some of these jurisdictions, and the Thirteenth Amendment to the United States Constitution, ratified in December 1865, finally abolished slavery throughout the United States.
Plessy v. Ferguson- basically Louisiana passed a law saying the black people need it separate car when traveling on train not on the same as a white person.
Plessy was 1/8 African descent (was born free and other 7/8 was of European descent ) and under Louisiana rule he had to sit on a black car. eventually he sat on white only car and got into trouble, just like Rosa Parks. and he was eventually got arrested and tried.