Full Idea
There is no event in itself. What happens is a group of appearances selected and summarised by an interpreting being.
Gist of Idea
Events are just interpretations of groups of appearances
Source
Friedrich Nietzsche (Unpublished Notebooks 1885-86 [1886], 1[115])
Book Reference
Nietzsche,Friedrich: 'Fragments from 1885-86 (v 16)', ed/tr. Del Caro,Adrian [Stanford 2020], p.287
A Reaction
Since innumerable events are nested within one another, such as the events at a carnival, this is obviously true. A primitive 'Kim event' (an object changes a property) might have objective existence. Carnivals happen, though.