This article explains how you can easily retrieve an Assignment or submitted assignment once you have deleted it.
- Click Course Tools in the navigation bar of your course.
- Click Assignments.
- Click on More Actions.
- Then click on Event Log.

- Click on Deleted to see all deleted assignments.
- Find the right assignment and click on Restore.
- The assignment will now appear again on the Assignments homepage. All possible restrictions, links and assignment submissions have also been restored

Note: You cannot restore a group assignment if you have also deleted the group or group category for which you created it.