I want to build a report which shows who is current assignee of the task and who was previous owner of the task.

I want to build a report which shows who is current assignee of the task and who was previous owner of the task. The reason for this report is we have a functionality to re-assign the tasks; but I want to display who had initially worked on the task by accepting it before it got re-assigned.
Please suggest.

OriginalPostID-190541