Department of Temporal Investigations

The DTI (Department of Temporaol Investigations) has evolved from a committee formed in 2266 devoted to the exploration of the possibility of time travel. It started when Antonio Degaldo discovered that an incident in which the USS Enterprise (NCC-1701) created a time warp when pulling away from a dying Psi 2000.

History
The committee was headed by Meijan Gray. It worked to create a timeship, which ended up creating an alternate reality.

After that incident, the Department was wary of timeship creation. In case of an emergency, it used the sling shot effect.

In 2373, it investigated an affair in which the crew of DS9 travelled back in time to 2268.

In 2409, it captured a Wells-class vessel from the Tholians and investigated it. It was from the 29th century, but it had been stripped of time travel ability and information. The ship's design inspired an extremely similar vessel known as the Paradox-class.

In 2411, it apprehended another Wells-class vessel, the USS Hawkings, from the crew of the Renaissance, who discovered it. It had one android crewmen aboard who contained file information from the future.

In 2444, Admiral Clazorus Vissyr Kazove began new studies at Memory Alpha of temporal mechanics.

In 2525, Kazove publishes the Ten Laws of Temporal Mechanics. In the same year, he neologizes the term tempology for his study.

In 2526-29, he studies with E.M. Rauch and Thex.

In 2559, Rauch founds the study of chronodynamics, the study of time travel.

In 2664, Rauch helps the Department create the first ever class of timeship, the Adams. The USS Henry Adams was launched. It also outlawed the creation of timeships for personal use by any planets in the Federation.

In 2669, two more  were Adams-class timeships launched.

In 2734, Ziverok Naln created a temporal holocommunicator. He contacted the Suliban and forever shaped the timeline. The Department combats Naln and the Plveeans. The Temporal Cold War began.

In 2879, Braxton uses the Aeon to travel back in time and contacts Voyager.

In 2883, the Department created the USS Wells, the first of its class.

In 2885, the USS Rubicon was launched.

In 3067, time travel became quite commonplace.

In 3070, Daniels made contact with Enterprise (NX-01) to help stop any further alteration to the past.

In 3075, the Federation outlaws any unnecessary time travel because of its harmful effecs on the timeline.