If you want readers to know about
your character’s past, put it in the form of an anecdote.
Don’t just tell them her parents
split up when she was nine, have her remember how they bought her a talking
doll before telling her the cat had been run over, a princess outfit before
telling her Nana had cancer, and a bike before telling her they were getting a
divorce. And now, every time someone gives her a present, she feels like
running screaming from the room.
Fact and figures, names
and dates don’t mean anything to readers.