What is Ceasar in Gaul?

While looking through the text files, I've come across things refering to "Ceasar in Gaul" multiple times. What is this?

it is a campaign that most people think was going to be a tutorial type campaign or a short campaign focusing on one part of europe and wasn't completed but there were a few bits of code left in as the game was published...

Hmmmm... It would be pretty cool if someone modded it to finish the campaign...

well, no response, but if you noticed, i asked the same question a few days ago. so future advice. always check to see if the question has already been asked.

Sorry, I usually just quickly check the first 5-10 topics. I must have stopped right before I would have seen your thread.