The one on the right (shown here) is a slider allowing you to move up and down in time and see various product from your Facebook life.
Onye dị n'aka nri (gosiri ebe a) bụ ihe nkwụnye nke na-ahapụ gị ka ị gafere na ala n'oge ma hụ ihe dị iche iche na ndụ Facebook gị.