Time

Time was a concept used to define a non-spatial continuum where events occured in a irreversible state and was in transition from one point to the next which were governed by the laws of the universe.

History

 * See Timeline.

The Clan Ru used the Guardian of Forever in order to travel back in time to prehistoric Earth so that they could destroy the asteroid that brought about the death of the dinosaurs. This was because the Clan Ru were the descendants of dinosaurs that were saved by the Preservers and moved off world. They believed that by destroying the asteroid, they would become dominant on Earth but in the altered timeline they destroyed themselves in a nuclear war and led to an interstellar conflict between the Romulan Star Empire and the Klingon Empire. This timeline was reset by the crew of the USS Enterprise. 

The Romulans used temporal technology to go back in time and assassinate Doctor Palmer on Earth. This action prevented the planet from forming the United Federation of Planets and became known as Second History. They did this with the intention of removing the Federation as an enemy to the Romulan Star Empire. However, this led to the creation of the Interstellar Alliance of Planets which was led aggressively by the logical Vulcans. The damage to the timeline threatened to destroy all of existence as many individuals began suffering from a time of madness and led to a restoration of the main timeline. 

In the years prior to the 24th century, the Klingon Empire was noted to have sent special temporal assault teams into the past in order to remove a threat to the Klingons by making sure that they never existed in the first. The fate of these operatives was unknown but was believed to have resulted in the creation of a large number of alternate timelines that were separate from the mainstream reality. 

Science

 * Gemini effect
 * Temporal displacement
 * Temporal mechanics

Technology

 * Chroniton torpedo
 * Guardian of Forever
 * Manheim Temporal Research Facility
 * Orb of Time
 * Temporal transporter
 * Timeship

Timetravel Factions

 * Aegis
 * Counter Strike
 * Sphere Builders
 * Federation Department of Temporal Investigations
 * Starfleet Temporal Warfare Division
 * Tal Shiar Temporal Assessment Group
 * Tholian Assembly
 * Devidians

Other

 * Temporal Cold War
 * Temporal Prime Directive