Malchar
Prince
What determines when cities or resources are connected to the trade network? This seems obvious, but it sometimes resources right next to my capital are automatically connected as soon as I build the appropriate improvement on the tile. That is, I don't have to build a road at all. This might have something to do with whether there's a river there. Also, it seems like my cities will connect themselves automatically if there's a river between even if I don't have sailing. Some of these things might be messed up by various mods, but what is supposed to happen by default?