Define the doctrine of stare decisis. Please explain the rationale behind this doctrine (how does this doctrine help courts?)

1. 1. What impact has the doctrine ofstare decisis had on the courts?
   2. How can the doctrine of stare decisis be overruled by the legislative branch?
   3. Explain the circumstance(s) under which a court should not follow the doctrine ofstare decisis, even if there is a case-on-point with similar circumstances in the same jurisdiction. Please consider the cases of Plessy v. Ferguson (1896) and Brown v. Board of Education (1954) in your response.