I had created at least 8 tags in past and was wondering if there are any points for that.
I'd also like to know identify the tags I've created or who has created a specific tag.
No, there's no reputation available for that. It might create bad incentives to produce useless tags :-)
The list of things you gain reputation for is here:
You can see the edits to the tag description and the tag excerpt description under Tags > specific tag > Learn more > History, but that only shows the history of the descriptions, not the creation of the tag itself. If no-one has written a description, the History link won't be there.