Established vs. Not Established

Hi, not new to iNat but kind of new to using different features and the forum. Is there a place where general “how to” is discussed?
For instance, I searched but can’t find what Established vs Not Established means under Annotations. I read about the new Evidence of Presence values, but I’m wondering about the drop down for not or is established.
I have seen it for several of my observations, but the Houston Toad is an example.
Thank you.

1 Like

https://www.inaturalist.org/blog/91460-piloting-an-establishment-annotation-with-amphibians-and-reptiles and https://www.inaturalist.org/pages/annotationvalues

1 Like