In my current game, Sury demanded the Gold resource from me early on. I gave in, knowing I had a second Gold to fall back on. 10 turns later, I canceled it. Subsequently, someone else demanded Gold, I gave in again. Forgot to cancel that one until well after the 10-turn minimum, but oh well.
The game proceeds further. Sury and I have a lot of similar land, so we have similar resources - except I had Gold and he didn't. By around 500 AD, he had something like ~10
/turn available in trade, but my trade screen only showed one Gold. I must have traded the other one for someone's resource, I thought. Too bad, that
would come in handy.
Fast forward many more turns and Sury has so much
/turn that I decide to find my other Gold trade, cancel it, and trade something else to whoever that trade was with. Except I can't find that other Gold trade, anywhere.
Because I had never hooked up the second Gold. I connected the first one for the
, had other priorities ahead of connecting the second one, and forgot. For 4500 years. 4500 years of unnecessary
and foregone trade income...