Calendar events disappeared

Hi TeresaMS,

Thank you for participating in the Apple Support Communities. We understand your calendar events have disappeared. You can restore your calendar to an earlier version if needed, by following the steps in this article: If you accidentally deleted your calendars, bookmarks, or contacts from iCloud.

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Restore your calendars from an earlier version 

Several things happen when you restore an earlier version of your calendars. 

• Your sharing settings get erased. You can share the calendars again, or you can ask the owner to share them again.
• iCloud cancels and recreates all of your upcoming, scheduled events, then resends the invitations for you.

To restore your missing calendars: 

1. Sign in to iCloud.com.
2. Scroll down to the bottom of the window, then select Data Recovery.
3. Select Restore Calendars. 
4. Select Restore next to the date before you deleted the content.
5. Select Restore again to confirm. After the restore completes, you get a notification on iCloud.com and an email at the address on file with your Apple ID.

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Take care.

Hey there TeresaMS, 

Were you using a different account to sync your calender? For instance, Google, Outlook, Yahoo, etc. If so, you'll need to review support for those accounts to determine your optoins for restoring lost calendars.  

Have a good one!