All mighty spiritual revivals have had their roots in prayer. Years ago a missionary revivalist reported that in England he talked to a lady about the revival in China. She gave him certain dates when God specially pressed her to pray. He was startled to find that they were the very dates when God was doing his mightiest work in Manchuria and China. The day will come when the history of revival will be unveiled and show that it was brought about mainly by God's saints hidden away with Him in prayer. There will be an international prayer day for the unreached peoples of the world on 20 May. Will you pray? To find out more, go to