history: My wife and I had to move far away from home recently for her grad school.  My parents were kind enough to cosign on a loan for a condo. When my wife and I had to move for her to go to school_comma_ we had a lot of trouble finding a place to live until my parents were nice enough to cosign on a loan.
current: You must be so thankful!
next: We are.  They've helped a lot during my life, but this might have been the biggest one.