The original site did run on WordPress, and it did require registering - you had to answer a specific question about one of the Atlases.
I still have the original data, but only as an old sql database, and as a text dump. It's also grown out of date with the latest books so it's probably not as useful as a starting point then what brandivil has.
Nomikos didn't have just timeline entries, it also had all the little stories and snippets, journals, quotes, etc. from all the books, which was useful, but the search never worked very well.