You can easily restore any events you have archived if you need to use them again.
In the left navigation, make sure you are in the Academy Workspace.
When in the Academy Workspace, select Training Admin for all Training Administration options.
Select Manage Training and then select Virtual Events.
If looking for In-Class events instead, select this option.
Filter for Archived events, and select the event from the list that appears.
Select UnArchive on the right.