Okay, I've looked everywhere -- the game manual, the civilopedia, these forums, even google and couldn't find an answer to this question so I guess it is time to ask it here. In previous versions, if you gifted a unit that the recipient couldn't build yet due to tech requirements, there was a chance that the recipient could automatically discover a prerequisite tech. Does this still hold true in Civ IV? In the game I'm playing right now the Germans are fighting the Incans and rather than get directly involved, I would love to gift Freddy a few cavalry. I don't want him to have the chance to discover the prereq's from the gift, though, as he is already uncomfortably close to me in tech. I'm wondering if this is something that was kept the same but just not mentioned, or if it was dropped from this version.