In this volume, organized by Gênese Andrade and with unpublished essays of José Miguel Wisnik, Lilia Moritz Schwarcz, Walnice Nogueira Galvão, Regina Teixeira de Barros and twenty-five other researchers, it is thought-provoking to perceive how themes and issues involving the Semana de 22 don't run out. Revisiting those days of February involves advances and setbacks, new questions and answers open in a centuries-old reflection that revolves around antecedents and developments, on which there is no consensus.