individually that they prevented the states into an image editor north carolina didn't want any traffic on the south carolina park south carolina didn't want any traffic going to georgia. it's only when you see the confederacy, and when you see a continuous railroad. to land is not a place really of any importance until the confederacy brings bridges, atlanta to richmond, largely to feed the a confederacy. then you start to see a self that goes all the way to texas and you start to see this convergence. the peculiar thing about that is this environmental catastrophe that then follows when you bring these railroads through and you start to see yellow fever and all these other diseases that had previously just been coastal spreading throughout the uc pellagra and scurvy at a lot of other diseases that are uniquely southern that have to do with all this cheap food that starts coming in by railroad into the south, and that cheap food doesn't have riboflavin, doesn't have vitamin c or i am. lots and lots of white and black people are eating food that's not especially good for them, and so you see this slowness in all of these diseas