Questions & Answers about ¿Qué sucedió?
Spanish uses both an opening question mark ¿ and a closing question mark ? around direct questions.
So:
¿Qué sucedió?
This helps the reader know from the start that the sentence is a question. In English, you only see that at the end.
In a direct question, qué takes a written accent.
So in ¿Qué sucedió?, qué means what? as an interrogative word.
Compare:
- ¿Qué sucedió? = What happened?
- Lo que sucedió... = What happened... / That which happened...
In the second case, que has no accent because it is not being used as a question word.