Where does “történetre” come from?

történetre (Hungarian) comes from Hungarian történet, from Hungarian történik — to happen.

történetre (Hungarian): sublative singular of történet

Definitions

Step	Language	Word	Meaning
1	Hungarian	történet	story, tale; history; thing, thingy, gizmo,...
2	Hungarian	történik	to happen

történetre — Etymology, Origin & Word History | Etymology Explorer