history: My mother just graduated from nursing school in her 50's. She put in a lot of effort, and she proved to herself and others that she could do it. Oh wow_comma_ you must be very proud of her. That is quite an accomplishment. What was the accomplishment again?
current: My mother just graduated from nursing school in her 50's. She put in a lot of effort, and she proved to herself and others that she could do it.
next: Wow, that's amazing. What made her want to go back to school?