Blank timeline template PDF is a simple timeline graphic that is used to describe the flow of events. The graphic can start from the left or right-hand side according to the writer but it should follow in one direction only. The first event written is supposedly the first event happening in time. Then, it is followed by sequential events organized by date or time. The graph has 9 squares for 9 events. More than one event can be written in the same square if both happened at the same time. Also, more squares can be added or removed according to the number of events.