What significant change did Gideon v. Wainwright introduce?

The significance of Gideon v. Wainwright lies in its landmark ruling that established the requirement for states to provide legal counsel to defendants who cannot afford an attorney in criminal cases. This case extended the right to counsel, which was previously guaranteed in federal cases by the Sixth Amendment, to state courts under the Fourteenth Amendment's Due Process Clause. As a result, every defendant is afforded the right to a fair trial, which includes having the necessary legal representation, thereby ensuring that justice is accessible to all, regardless of their financial status. This fundamentally altered the landscape of legal representation in the United States by affirming the principle that everyone deserves a competent defense in criminal proceedings.