How can you view a map screen before you have discovered mapmaking? I think that before mapmaking, units (and cities) should only be able to see what is directly around them and when they leave an area it should go back to being 'undiscovered'.

Plus, with the 'farming' screen (where you can choose where on the radius to farm), you should not be able to farm across the sea before you have discovered ships, I mean, do the farmers just SWIM across?!

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Wernazuma alias Cheshirecat alias Wörn

Back in late 1980's? a game for the C64 (Commodore 64) called Modem Wars had the option, at the end of the match, to view a "movie" of the game. Basically it was just a scripted replay of the moves as the progressed in the match. The computer would animate the game pieces, showing in compressed time, your game. This was a real time strategy game, and one of the first, if not the first, active connection modem game.

Knowledge of terrain was a basic need for hunters, not to mention nomadic tribes exchange knowledge by mouth and some painting technics way before writing was developed. I havent a proper history book at hand, but I'm sure S.Kroeze or any other apolytoner can check and confirm this.

About fishing, people used to fish on the shore or from early canoe, as Wernazuma underlined before.
Of course the use of advanced technics raised the amount of fish gained by sea, but that can be reproduced by game advance (add +1 to sea after proper discovery).

BTW, I'm reading today on the newspaper about a japanese discover of first kind of human hut (may be a kind of temple) aged to 600,000 (sixhundredthousands!) years ago. Think about knowledge tribe had 4.000 years ago, when Civ game start.

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Wernazuma alias Cheshirecat alias Wörn

If you understand italian you can check it at http://www.corriere.it/edicola/index.jsp?path=INTERNI&doc=PREI (but it is a dynamic address, maybe it will change).

If you like I can use Apolyton message mailbox to send right to you a brief summarized version traslated in english by me.
You can try to check the news elsewhere looking for this keywords:
place of discovery: Japan, Kamitakamori, near Sendai town (300Km far from Tokyo)
archeologist: Hiroshi Kajiwara of the Tohohu Fudkushi university.

Sorry for the OT.

Of course the archeologist are supposing about the hut presence, because of regular hole in the ground (supposed to keep up the wood or the bones that were the hut structure, covered by animal skin) and a group of stone in the middle.

Rest of early "tools" and bones suggested about the use of the hut.

First news about discover (and the 600,000 years extimate) are two years old, and can be read (in english ) here http://www.trussel.com/prehist/news86.htm
detailed info are available here

The recent news (I'm not able to find an english site about it) are about the deduction of a primitive round hut (about 1m of radius), made by homo erectus.

Tim White don't worry, I don't mean nor want that CIV 3 start 600K years b.c.

The earliest maps must have been based on personal experience and familiarity with local features. They doubtless showed routes to neighbouring tribes, where water and other necessities might be found, and the locations of enemies and other dangers. Nomadic life stimulated such efforts by recording ways to cross deserts and mountains, the relative locations of summer and winter pastures, and dependable springs, wells, and other information.

Markings on cave walls that are associated with paintings by primitive man have been identified by some archaeologists as attempts to show the game trails of the animals depicted, though there is no general agreement on this. Similarly, networks of lines scratched on certain bone tablets could possibly represent hunting trails, but there is definitely no conclusive evidence that the tablets are indeed maps.

The earliest specimens thus far discovered that are indisputably portrayals of land features are the Babylonian tablets previously mentioned; certain land drawings found in Egypt and paintings discovered in early tombs are nearly as old. It is quite probable that these two civilizations developed their mapping skills more or less concurrently and in similar directions. Both were vitally concerned with the fertile areas of their river valleys and therefore doubtless made surveys and plats soon after settled communities were established. Later they made plats for the construction of canals, roads, and temples--the equivalent of today's engineering plans.