I have a question about the right way to extract the accurate time (or revision ID) of when an article becomes a featured article (FA) or a good article (GA).

The first and most straightforward method I tried was to extract the first time that a {{featured article}} tag (or a {{good article}} one) is found in the article revision text.

However, in some cases, this yields weird results, such as an article being an FA on the same day it was created.

Another method I tried (without much success) was to extract this information from the article talk page under the "Article History" section.

However, not all pages have this section, and I'm not sure how reliable this information is (are all editors adding the date when the article got a promotion or maybe the nomination date?)

So, I wonder if anyone can advise on the best way to extract this information in the most accurate way. Isn't there any database table that holds such information?
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