Respuesta :
The answer to this question would be Plessy v. Ferguston.
This was when a black man sat on the white side of a railcar.
Good luck!
Answer:
Brown v. Board of Education
Explanation:
Brown v. Board of Education overturned Plessy v. Ferguson. Brown v. Board of education made segregation of public schoool unconstitutional and is the basis for the desegregation of public transportation.