The question is: why only in the period of 40–50 years, Islam can be received so widespread in Java, whereas before it was very difficult to develop? One significant key-factor of the success of Da'wah of Walisongo is how the Walisongo develop an abandoned civilization of Majapahit into a new civilization whose roots form the Majapahit but with Islamic characteristics. For example, until the early Demak era, society is divided into two major groups, such as Majapahit era.