- The admission of guilt by Nicola Sacco and Bartolomeo Vanzetti
- The widespread belief in the innocence of Nicola Sacco and Bartolomeo Vanzetti
- The posthumous exoneration of Nicola Sacco and Bartolomeo Vanzetti
- The establishment of a federal commission to investigate the trial of Nicola Sacco and Bartolomeo Vanzetti
- The establishment of the Massachusetts Supreme Judicial Court's Committee for Public Counsel Services