434 - Precedent

Precedent : Noun

an action, situation, or decision that has already happened and can be used as a reason why a similar action or decision should be performed or made (Cambridge)
an official action or decision that has happened in the past and that is seen as an example or a rule to be followed in a similar situation later (Oxford)
بیوقوف ,احمق

There are several precedents for promoting people who don't have formal qualifications. .(Cambridge).
The ruling set a precedent for future libel cases.(Oxford)