Frank Charles Laubach, from Benton, Pennsylvania was a Congregational Christian missionary educated at Union Theological Seminary and Columbia University, and a mystic known as "The Apostle to the Illiterates." In 1915, while working among Muslims at a remote location in the Philippines, he developed the "Each One Teach One" literacy program. It has been used to teach about 60 million people to read in their own language. He was deeply concerned about poverty, injustice and illiteracy, and considered them barriers to peace in the world.

ProLiteracy, also known as ProLiteracy Worldwide, is an international nonprofit organization that supports literacy programs that help adults learn to read and write. Based in Syracuse, New York, ProLiteracy has slightly less than 1,000 member programs in the U.S. and works with 21 partners in 35 developing countries.