By Default, the Approval History tab looks like as follows

By default the displayed fields include the following:

• Source Status
• Transition Name
• Destination Status
• Approval Name
• Approval Detail (any group, project role, user, etc. having been configured on the Approval)
• Executor
• Action (Approved, Rejected, Pending,Automatic Transitioning, Automatic Notification, Approvals Notification, Single Notification)
• Date
• Approver's Comment

By Default data are ordered by date & time in descending order.

The information displayed on the Approval History and its aspect can differ depending by the setting applied on the following options:

• Enable/disable Approval History tab
• Show/Hide Columns
• Customize Columns Labels
• Show events grouped by 
• Hide events
• Expand/Collapse rows 
• Apply Filter
• Column titles