I want to say I read somewhere once about how the railroad had huge implications in the cause of WW1 and I would guess it had a lot to do with the American Civi

I want to say I read somewhere once about how the railroad had huge implications in the cause of WW1 and I would guess it had a lot to do with the American Civil War as well. So I would guess not just communications technology but also transport, trade and other innovations contribute in similar kinds of upheaval.