Event - AbsoluteAstronomy.com

Event can refer to many things such as:

An observable
Observable
In physics, particularly in quantum physics, a system observable is a property of the system state that can be determined by some sequence of physical operations. For example, these operations might involve submitting the system to various electromagnetic fields and eventually reading a value off...

occurrence, phenomenon
Phenomenon
A phenomenon , plural phenomena, is any observable occurrence. Phenomena are often, but not always, understood as 'appearances' or 'experiences'...

or an extraordinary occurrence

A type of gathering:

A ceremony
Ceremony
A ceremony is an event of ritual significance, performed on a special occasion. The word may be of Etruscan origin.-Ceremonial occasions:A ceremony may mark a rite of passage in a human life, marking the significance of, for example:* birth...

, for example, a marriage
A competition
Competition
Competition is a contest between individuals, groups, animals, etc. for territory, a niche, or a location of resources. It arises whenever two and only two strive for a goal which cannot be shared. Competition occurs naturally between living organisms which co-exist in the same environment. For...

, for example, a sports competition
A convention (meeting)
Convention (meeting)
A convention, in the sense of a meeting, is a gathering of individuals who meet at an arranged place and time in order to discuss or engage in some common interest. The most common conventions are based upon industry, profession, and fandom...
A happening
Happening
A happening is a performance, event or situation meant to be considered art, usually as performance art. Happenings take place anywhere , are often multi-disciplinary, with a nonlinear narrative and the active participation of the audience...

, a performance or situation meant to be considered as art
A festival
Festival
A festival or gala is an event, usually and ordinarily staged by a local community, which centers on and celebrates some unique aspect of that community and the Festival....

, for example, a musical event
A media event
Media Event
A media event, as loosely defined by evolving modern usage, is an occasion or happening, spontaneous or planned, that attracts prominent coverage by mass media organizations, particularly television news and newspapers in both print and Internet editions....

, a happening that attracts coverage by mass media
A party
Party
A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, or recreation. A party will typically feature food and beverages, and often music and dancing as well....
A sporting event
Sport
A Sport is all forms of physical activity which, through casual or organised participation, aim to use, maintain or improve physical fitness and provide entertainment to participants. Sport may be competitive, where a winner or winners can be identified by objective means, and may require a degree...

In science, technology, and mathematics:

Event (computing)
Event (computing)
In computing an event is an action that is usually initiated outside the scope of a program and that is handled by a piece of code inside the program. Typically events are handled synchronous with the program flow, that is, the program has one or more dedicated places where events are handled...

, a software message indicating that something has happened, such as a keystroke or mouse click
Event, Particle accelerator
Particle accelerator
A particle accelerator is a device that uses electromagnetic fields to propel charged particles to high speeds and to contain them in well-defined beams. An ordinary CRT television set is a simple form of accelerator. There are two basic types: electrostatic and oscillating field accelerators.In...

, experiments which produce high energy (Electron volt|MeV, GeV, and TeV) subatomic particle collisions
Event (probability theory)
Event (probability theory)
In probability theory, an event is a set of outcomes to which a probability is assigned. Typically, when the sample space is finite, any subset of the sample space is an event...

, a set of outcomes to which a probability is assigned
Event (UML)
Event (UML)
An event in the Unified Modeling Language is a notable occurrence at a particular point in time.Events can, but do not necessarily, cause state transitions from one state to another in state machines represented by state machine diagrams....

, in Unified Modeling Language, a notable occurrence at a particular point in time
Event chain methodology
Event chain methodology
Event chain methodology is an uncertainty modeling and schedule network analysis technique that is focused on identifying and managing events and event chains that affect project schedules...

, in project management
Event (relativity)
Event (relativity)
In physics, and in particular relativity, an event indicates a physical situation or occurrence, located at a specific point in space and time. For example, a glass breaking on the floor is an event; it occurs at a unique place and a unique time, in a given frame of reference.Strictly speaking, the...

, a point in space at an instant in time, i.e. a location in spacetime
Event horizon
Event horizon
In general relativity, an event horizon is a boundary in spacetime beyond which events cannot affect an outside observer. In layman's terms it is defined as "the point of no return" i.e. the point at which the gravitational pull becomes so great as to make escape impossible. The most common case...

, a boundary in spacetime, typically surrounding a black hole, beyond which events cannot effect an exterior observer
Extinction event
Extinction event
An extinction event is a sharp decrease in the diversity and abundance of macroscopic life. They occur when the rate of extinction increases with respect to the rate of speciation...

, a sharp decrease in the number of species in a short period of time
Celestial event
Celestial event
A celestial event is an astronomical phenomenon of interest that involves one or more celestial bodies. Examples of celestial events include the various phases of the Moon, meteor showers, comets, solar and lunar eclipses, planetary oppositions, conjunctions, and occultations....

, an astronomical phenomenon of interest

In philosophy:

Event (philosophy)
Event (philosophy)
In philosophy, events are objects in time or instantiations of properties in objects. However, a definite definition has not been reached, as multiple theories exist concerning events.-Kim’s Property-Exemplification Account of Events:...

, an object in time, or an instantiation of a property in an object
Mental event
Mental event
A mental event is a particular occurrence of something going on in the mind or mind substitute. It can be a thought, a dream, a feeling, a realization, or any other mental activity. Mental events are not limited to human thought but can be associated with animal and artificial intelligence as...

, something that happens in the mind, such as a thought

In Film, television, theatre and literature:

The Event, an American conspiracy thriller television series for NBC
The Event (film)
The Event (film)
The Event is a 2003 drama film directed by Thom Fitzgerald. It tells the story of Matt Shapiro who has died in Manhattan, resulting in an aborted 9-1-1 call...

, 2003 film directed by Thom Fitzgerald
Derren Brown: The Events
Derren Brown: The Events
Derren Brown: The Events is a Channel 4 television series featuring the illusionist Derren Brown. Filmed in front of a live studio audience, this series is made up of four one-hour specials, during which Brown attempts what he has described as "some of the most incredible feats to date"...

.
Event, a literary magazine published by Douglas College
Douglas College
Established in 1970, Douglas College is one of the largest public colleges in British Columbia, Canada serving 14,000 credit students, 9,000 continuing education students and 1,000 international students each year.-Programs:...

See also