Establish or ascertain the date of (an object or event).
"they date the paintings to 1460–70"
Similar:
assign a date to
put a date on/to
carbon-date
2.
indicate or expose as being old-fashioned.
Explanation:
Are you okay??
It has to be Dance ! For your answer
I would say when you're creating an outline and when you need to narrow down the scope of a topic