You'll see a tab named Close History in Close Mode, which displays the list of all the closes, whether finalized or running closes. You can also quickly filter by the statuses.

We maintain a log of all the changes done to the close statuses and changes in the close due date. When you click on the three dots against each close row, you will see an option of 'View Log.' Click to view the log.

To delete any Close, click on the Three Dots next to each close period, and you'll see an option to delete.