of events can be presented in text, tables, charts, or timelines. The description of the items or events may include a timestamp. A sequence of events that includes the time along with place or location information to describe a sequential path may be referred to as a world line. Uses of a sequence of events include stories, historical events (chronology), directions and steps in procedures, and timetables for scheduling activities. A sequence of events may also be used to help describe processes in science, technology, and medicine. A sequence of events may be focused on past events (e.g., stories, history, chronology), on future events that must be in a predetermined order (e.g., plans, schedules, procedures, timetables), or focused on the observation of past events with the expectation that the events will occur in the future (e.g., processes, projections). The use of a sequence of events occurs in fields as diverse as machines (cam timer), documentaries (Seconds From Disaster), law (choice of law), finance (directional-change intrinsic time), computer simulation (discrete event simulation), and electric power transmission (sequence of events recorder). A specific example of a sequence of events is the timeline of the Fukushima Daiichi nuclear disaster. See also List of UTC timing centers Time metrology Organizations Antiquarian Horological Society – AHS (United Kingdom) Chronometrophilia (Switzerland) Deutsche Gesellschaft für Chronometrie – DGC (Germany) National Association of Watch and Clock Collectors – NAWCC (United States) Miscellaneous arts and sciences Date and time representation by country List of cycles Nonlinear narrative Philosophy of physics Rate (mathematics) Miscellaneous units Fiscal year Half-life Hexadecimal time Tithi Unix epoch References Further reading Craig Callendar, Introducing Time, Icon Books, 2010, – Research bibliography Benjamin Gal-Or, Cosmology, Physics and Philosophy, Springer Verlag, 1981, 1983, 1987, . Charlie Gere, (2005) Art, Time and Technology: Histories of the Disappearing Body, Berg Stiegler, Bernard, Technics and Time, 1: The Fault of Epimetheus Roberto Mangabeira Unger and Lee Smolin, The Singular Universe and the Reality of Time, Cambridge University Press, 2014, . External links Different systems of measuring time Time in the Internet Encyclopedia of Philosophy, by Bradley Dowden. Main topic articles Concepts in aesthetics Concepts in epistemology Concepts in metaphysics Concepts in the philosophy of mind Concepts in the philosophy of science Metaphysical theories Ontology Perception Philosophy of time Physical phenomena Qualia Reality Scalar physical quantities SI base quantities Spacetime