Was heißt »Event« auf Englisch?

Das Substantiv Event lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

This event will go down in history.
Then something happened that was completely out of the ordinary, an event that would change the lives of those present for ever.
Who organised this event?
Tom was the only artist at the event who actually sang rather than merely lip-synced to a pre-recorded soundtrack.
Halloween is a highly anticipated event for children across the United States.
Typically, the White House invites trick-or-treaters to receive candy and treats from the president and first lady. The event, however, will not take place this year.
We're not always wise after the event.
Who organized this event?
People are wise – some before the event, others after.
If you had the chance to change a single event in history, which one would it be?
What should we do in the event of a fire?
Anyway the event has already passed, there is no point in mentioning it again.
Gamma ray bursts are so intense that if such an event occurred "close" to the Earth, causing a beam to fire directly at our planet, the radiation and particles could do harm.
It's an open-air event.
The event is taking place outdoors.
"Oh, you're here as well!" "How could I miss an event like this?"
A local resident captured the event on video.
Tom helped to organize the event.
I think that it's an important event.
I don't have suitable shoes for that event.