Here is an example of a hotel company's development timeline, from which the company developed from 2011 to 2015. From this timeline, this hotel company went through some milestones, like the stock exchange in HK. Timeline is the alignment of time, a chronological statement, to define a certain chain of events or activities that happened at a particular phase. In a visual context, it is a representation of the data, defined through lists, tables, or graphics, where it's all jotted down, sequenced in the same chronological order.