The Treasures of the Earth -- From the beginning of time the question of the earth and its treasures have been one of the questions of first importance in our lives. It has been the cause of emigration and of many misfortunes and the motiv of wars. But it has always both like that. Men have always fought for gold diamonds, oil, coal or some other natural product capable of enriching a people. View of a Diamond Mine at Pretoria in South Africa. October 23, 1933. (Photo by C. Delius).