Anti-railroad Propaganda Poster: The Growth of Regionalism, 1800 - 1860 Background Did you ever wonder why people from Chicago call carbonated water "pop" while New Yorkers call it "soda"? Or why Southerners tease Northerners for talking too fast, driving too fast, and even eating too fast? Well, the United States has always had regional differences. Today, the regions may be difficult to draw a line around, but from 1800 to 1860, those lines clearly existed. The United States was divided into t