God declared that "the time of the end" would be marked and designated by wonders of scientific attainment, communication, transportation, vast accumulation of wealth, intense conflict between capitalism and labor, and a dramatic awakening of the pagan world. How marvelous the fulfillment! The Challenge of the Twentieth Century was first written in 1932 and rereleased as a Heritage Classic. The author seeks to open the eyes of the reader to the prophecies that are being fulfilled in the present era.