First published on 5 March 1876, "Corriere della Sera" is one of Italy's oldest newspapers and is Italy's most read newspaper. Its masthead has remained unchanged since its first edition in 1876. It reached a circulation of over 1 million under editor and co-owner Luigi Albertini, between 1900 and 1925. He was a strong opponent of socialism, of clericalism, and of Prime Minister Giovanni Giolitti who was willing to compromise with those forces. Albertini's opposition to the Fascist regime forced the other co-owners to oust him in 1925.