This is the 67th most frequent Hungarian word.
történt
"Happened" or "occurred."
In this question, "történt" is used as the past tense of the verb "történik" to mean 'happened', referring to an event that occurred.
Mi történt tegnap este?
What happened last night?
Here, "történt" indicates an occurrence, or in this case, the lack thereof, describing an uneventful personal experience.
Semmi különös nem történt velem ma reggel.
Nothing special happened to me this morning.
In this sentence, "történt" describes a specific event or occurrence happening in a specific place, in this instance, at the workplace.