Problem:
Testers did not understand why the timestamp is mentioned so prominently on the Curious Facts page. We need to add a short explanation for context.

We could change it to something like “This fact was established on: 2021-01-29 12:14:10, and is based on the 2021-01-18 snapshot in hdfs of the Wikidata JSON dump. Edits made after that date are not taken into account.”

Acceptance criteria:

• timestamp message is explained