Delete an event that wasn’t supposed to be deleted? Not to worry, deleted events can be restored with a few clicks.
To view and restore deleted events*:
Step 1: In Calendar, open the My calendars list.
Step 2: Hover over your calendar and next to the name, click the Down arrow Trash.
Step 3: Check the box next to the event you want to change and do one of the following options:
Step 4: To restore the deleted event, click Restore selected events.
Step 5: To permanently delete the event, click Delete forever.
(Optional) To delete all events in your trash, at the top, click Empty trash now.
*To view and manage deleted events for other calendars, you must have “Make changes to events” or “Make changes AND manage sharing” permission for them.
Note: Deleted events remain in a calendar’s trash for 30 days.