it is clear that knowing history it not enough . One must meditate on it with precise goals , meditate in order to create new works , meaning authentic works ( Renesto Nathan Rogers ) Ernesto Nathan Rogers and his design theory of (( environmental prexistences )) were behind the most substantial italian postwar contribution to a new concept of tradition , translated on a new expressive effort that was highly attuned to the problems of setting and to the problems involved in inserting new architecture in historic centers .From the magazines domus and casabella - continuita and by means of his historic centers .From the magazines Domus and Casabeela- continuita and by means of his teaching activity at the milan polytechnic < Rogers established a delicate relationship between modernity in architecture and the universal value of history in his way a new international method of architectonic design began to take shape in italy.