You can view a brief rundown of a particular instance of Leave by selecting it from the Leave page. Initially, your entire Leave year is summarised on this page, click on any month to expand that view to see all Leave for a single month. Then, select any individual instance of Leave to see who has recorded or approved it.
If you need to see a timeline of all Leave actions (e.g. requests, approvals etc) you can go to Request History on the Leave page.