The aim of the present article is to evoke the 500 years of the Luther's Reformation. First of all it is important to talk about the personality of the "father" of the historical movement which had a great meaning for Europe, particularly the septentrional and oriental countries, and also for the world. Among other Luther's collaborators we must evidence Melanchton, the "praeceptor Germaniae", the man who elaborated the first Reformation's theological systematization. After five centuries of hard controversies it is to register that since about 50 years the two parts, the protestant and the catholic, developed a fructiferous dialogue whose results are very positive. Some documents like From Conflict to Communion opened new ways to reexamine the past and to build bridges in order to defy the future with firm hope. Credited authors underline that the times have changed.