I like that! Also, it goes towards my missing, and wishing for an improvement upon, the Civ 2 "Civil Wars."
. Too many taxes, not enough luxuries, not enough culture could also cause revolts in the cities which would then be controlled by the barbarians. These "barbarian cities" could then be bought by other civilizations. A way to take control of a territory without making war.
All this reminds me of how broken and limited the diplomacy in Civ3 is.
There's no unequal treaties such as protectorates, vassalage, suzerainty, tributary states or the like. E.g. ‘you cannot attack others without my permission’.
There's no possibility to agree on resources or luxuries as part of the tribute to be paid in peace talks.
There's no possibility of non-aggression pacts or non-belligerence pacts. For the latter, one could be ‘I'll supply you with weapons/money/oil as long as you remain at war with X’, effectively making it a proxy war. The moment the country makes peace, the shipments stop.
There's no co-development of techs or building of wonders… this last wouldn't be practicable anyway when in Civ3 only one civ can own a wonder, but what if you incorporated the ‘natural wonders’ concept from later games?
Or, also what if the ‘resource X within city radius’
could be shared if you got a trade pact with the neighbouring civ? Nearby cities have historically become economic areas and also joined up (see Buda and Pest, or the three cities on lake Texcoco) so economic integration
could be modelled.
WOW! Your memory is far better than mine - All I recall of the original Civ is one game where I nuked all of South America into a swamp
(I probably shouldn't tell this to my therapist ...
)
Or to people who live in South America…
I remember a lot of my civ1 games.
The most memorable moment was probably a 1000-year war, which started (as was usual) because allied AI would encircle your cities with its units, and so you couldn't have anything exit.

In the style of Alexander, I was naming most of my cities "Kyriakeia" (ala Alexandria)
Ah, yes, but Civ3 won't allow you to (re-)name a city as another city which you already control.
I agree and especially having to do with "Bridgemen" as they could offer a plausible and Graphic way to allow Units to cross Rivers in Game.
IIRC I posted something about parking sea untis to use as pontoon bridges similarly to using Telepads a few weeks ago.