I was looking ahead a bit to see what direction I should take and read the Roman Road entry. It says you can make rails, once you learn Steam Power. However I cannot find Steam Power in the tree and the hyper link is empty.
Is the link missing or is Steam Power not really required? I am too lazy to look in the editor and in any event a correction is needed one way or the other. Please tell me I can get rails at some point.
Steam power shouldn't be mentioned...and I am going through the civilopedia to sort all that out tomorrow (I hope). The equivalent is Roman Roads, accessed via the tech of the same name in era three. I think they require tar to be built, if memory serves...