There is only one religion, though there are a hundred versions of it.
George Bernard Shaw, Plays Pleasant and Unpleasant, Vol. II, preface (1898)
Members of The Religious Society of Friends are often referred to as Quakers. Quakers have no set creed or dogma. The origins of the Society are found in the seventeenth century in England. The map shows data from the Friends themselves: most members are found in Kenya, United States, Bolivia, Guatemala, United Kingdom, and Burundi. (Information Sources: quaker.org.uk and quaker.org)