The Dreyfus case underscored and intensified bitter divisions within French politics and society. The fact that it followed other scandals — the Boulanger affair, the Wilson case, and the bribery of government officials and journalists that was associated with the financing of the Panama Canal — suggested that the young French Republic was in danger of collapse. The controversy involved critical institutions and issues, including monarchists and republicans, the political parties, the Catholic Church, the army, and strong anti-Semitic sentiment.
Alfred Dreyfus, an obscure captain in the French army, came from a Jewish family that had left its native Alsace for Paris when Germany annexed that province in 1871. In 1894, papers discovered in a wastebasket in the office of a German military attaché made it appear that a French military officer was providing secret information to the German government. Dreyfus came under suspicion, probably because he was a Jew and also because he had access to the type of information that had been supplied to the German agent. The army authorities declared that Dreyfus’ handwriting was similar to that on the papers.