Taking the entire globe, if North America and Western Europe can be called the 'cities of the world', then Asia, Africa and Latin America constitute 'the rural areas of the world'.
Bio: Samuel Morison Brown, Scottish chemist, poet and essayist. He was born at Haddington, East Lothian, the fourth son of Samuel Brown, the founder of itinerating libraries, and grandson of John Brown, author of the Self-Interpreting Bible.