- 1. An undulating, broken, or calibrated line indicating successive points of time, used as a reference line for ascertaining the rate or timing of something.
- 2: In plural - A document certifying that a person has served an apprenticeship
- 3: a. A line used to illustrate or represent a chronological sequence of events; a chronology; a chronological sequence.
- b. A schedule.
A timeline is a way of displaying a list of events in chronological order, sometimes described as a project artifact. It is typically a graphic design showing a long bar labeled with dates alongside itself and (usually) events labeled on points where they would have happened. Timelines are often used in education to help students and researchers with understanding events and trends for a particular subject.
Timelines can take use any time scale, depending on the subject and data. Most timelines use a linear scale, where a unit of distance is equal to a set amount of time. This time scale is dependent on the events in the timeline. A timeline of evolution can be over millions of years, whereas a timeline about the September 11, 2001 can take place over minutes. While most timelines use a linear timescale, for very large or small times pans, logarithmic timelines use a logarithmic scale to depict time.
- Grafton, Anthony; Rosenberg, Daniel (2010), Cartographies of Time: A History of the Timeline, Princeton Architectural Press, pp. 272, ISBN 978-1-56898-763-7
- See also :Chronozoom