The best answer here is rolling admission. Rolling admission means that you can apply whenever you'd like and you'll find out if you are admitted once your application is received and reviewed.
For late admission and regular admission, colleges will require a due date to ensure they are able to sort through all of the applications they receive before the deadline. Open admission deals with the requirements that a college requires for a student to attend.
Answer: The purpose of flashback is to either move the story forward or reveal information about the character. You can use flashbacks for any number of reasons but its primary purpose is to bridge time, place and action to reveal a past emotional event or physical conflict that affects the character.
Hope this helps!
