Where is the history of ios 8 wifi connections?

There is no history of WiFi connections on the device. When you are in the vicinity of a WiFi network that you have previously connected to, you will be able to go to Settings>WiFi>Network>Name>Forget his Network. Otherwise, there is no way to purge previously connected WiFi networks.

Your iPad must be able to see the network in order to forget the network (or purge if you preference that term) in the settings.

Yes, there is a WiFi history saved in the iPad but it is not very user-accessible. The only things the user can do to it is to totally clear it with Settings > General > Reset > Reset Network Settings or to forget individual WiFi networks but this can only be done when the user is in range of that network.

DesertRatR wrote:

There has to be a history containing a list of WAPs that were successfully connected with. Otherwise the OS couldn't automatically connect. It is that list I am looking for.

What I meant - and I did state this - is that you cannot see a list of those previously connected to networks unless you are in the vicinity of said networks. You cannot go to your WiFi settings and see a list of previously connected networks in there - unless your iPad can see that network. So no - there is no list of networks that you have previously connected networks.

So as Jim stated, there is a history, but not a list like you want to see. You cannot selectively purge those networks either if you reset network settings. It's all previous networks when you reset network settings - including your own home WiFi network.