Final answer:
The Separate Car Act violated the 14th Amendment through racial segregation, leading to the 'separate but equal' doctrine and a long-standing precedent for segregation.
Explanation:
The Separate Car Act, challenged in the case of Plessy v. Ferguson in 1896, violated the 14th Amendment by instituting racial segregation on trains, which went against the principle of equal protection under the law.
This resulted in the establishment of the 'separate but equal' doctrine, where segregation was considered legal as long as facilities for both races were deemed equal.
Justice John Marshall Harlan dissented, arguing that the Constitution does not allow authorities to discriminate based on race when protecting civil rights, but his view did not prevail, setting a precedent for segregation for decades to come.
Learn more about Plessy v. Ferguson here:
https://brainly.com/question/14231234
