Past events may disappear due to Sync date range settings in the iOS Settings.
To set Sync date range for Local Calendars, do the following:
© 2007 - 2020 Readdle Inc.
Apple, the Apple logo, MacBook Air, MacBook Pro, and iMac are trademarks of Apple Inc., registered in the U.S. and other countries. Mac App Store is a service mark of Apple Inc.