J’accuse !

Definition
(I accuse) Frontpage headline from arguably the most famous newspaper editorial (in fact, an open letter) of the 19th century, relating to the infamous Dreyfus Affair where influential writer Emile Zola accused the French government of anti-Semitism and abuse of process. The initial reaction from the letter led to Zola fleeing to Britain to escape a libel conviction, but the public outcry, both national and international, eventually led to the annulment of the conviction of treason of the person in question, Captain Alfred Dreyfus, Zola’s pardon, the suicide of one of the conspirators, and the resignation of the government.