The Friends of MNSR – Círculo Dr. José de Figueiredo promote the presentation of the book Portugal na História Uma Identidade, by João Paulo Oliveira e Costa. In the session, the author and guest speaker, Luís Valente de Oliveira, answer the question why Portugal has existed for 900 years. Based on the historiographical essay João Paulo Oliveira e Costa, he seeks to explain what happened over the last few centuries.