Events of the last two hundred years have led many scholars to divide the societies of the world into contrasting pairs, such as developed—under-developed, advanced—backward, traditional—modern. Central to these concepts are not only ideas about the level of technological development, but the very character of the societies and cultures which are compared and contrasted as well. Professor Edward Shils has recently remarked that the traditional society is one in which, among other things, there is a strong attachment to the past, by which behavior is determined and validated. Solutions to problems old and new are determined by the past of the society, and modernization quickens when ties to the past begin to be cut and new criteria for determining and validating behavior are invoked.