iOS 10.3.3 destroyed my calendar entries
I unwisely upgraded my iPhone to iOS 10.3.3 and the upgrade destroyed my calendar entries. For every birthday I entered the name of the person, and on the second line I put the year they were born so that I could calculate the ages of my nephews and nieces. Or if it was an anniversary, then I put the year of (say) marriage. ALL GONE!!
How do I get all that information back?
Devastated!
iPhone 5s, iOS 10.3.3, Calendar entries