Uncovering TI in Asia

[Aries666]

In every game at some point all the TI over Asia etc is removed usually around the early/mid 1600's, what causes this? In my current Spain game I wiped out all the colonisers by around 1550, it's now 1700 and the TI over Asia remains. Is it something to do with circumnavigating the globe because I haven't done that and with no other colonisers no one else has either?

 

[Denkt]

If somebody in your tech group have knowledge of the area then it will spread to all other members of the tech group in 25 years.

 

[Thrake]

I thought it was scripted to be lifted in year XXXX for each tech group. Playing as say the Timmies, you get FOW lifted at some point over all Europe although nobody from their tech group should know about France. Even as Crimea, it's hard to even know about Austria.

 

[Denkt]

Wiki also say that discoveries can also spread between culture groups.
In eu3 I think they can spread between religious group however maybe not for pagans.

Maybe you can discover the neighbours map and in turn spread that to your tech group?

 

[Aries666]

If somebody in your tech group have knowledge of the area then it will spread to all other members of the tech group in 25 years.

But how does any one nation get vision of all on India and Ming in one go such that it propagates to everyone else? Normally all of India/Asia gets revealed in one go including inland which wouldn't have happened by say Portugal marching an explorer around.

 

[kitemasaki]

There are large TI reveals at certain points in the game so even if you don't take exploration you will eventually see most of the world. Chinese tech gets to see most of the middle-east and Russia around 1550. I believe Europe is revealed around 1600? If somebody has more accurate date brackets please do post. I know that the uncolonized portions of the New World, Africa and Oceania will not be revealed to you unless somebody in your tech group has discovered it or sometime in the mid 1700s.