established facts
noun phraseUK /ɪˈstæblɪʃt fækts/
US /ɪˈstæblɪʃt fækts/
Facts that are known to be true and accepted by everyone.
The teacher asked us to base our report on established facts, not rumors.
OTHER MEANINGS
2. Information that has been officially checked and agreed upon.
The committee relied on established facts before making its decision.
3. Things that are no longer in doubt because they have been tested many times.
It is an established fact that water boils at 100 degrees Celsius.
4. Basic truths that everyone in a group accepts as a starting point.
The debate began with a few established facts about the city's history.