The Beginning

Big Bang

Year Event
-15 Billion Big Bang.
-4 Billion Formation of Earth (Sol system) - First humanoid race seeds the galaxy (TNG)
-3.5 Billion First life begins on Earth
-3 Billion An ancient race builds a series of "Planet Killers" to combat the Borg. (Novel 'Vendetta')
-1 Billion Slaver Empire (spanning the galaxy) is destroyed by a revolt, leading to a destruction of most intelligent life in the galaxy. The only things left of this empire are "stasis boxes", the contents of which are not affected by time. (TAS - Slaver Weapon)
-2 Million The Preservers seed various planets with human/humanoid life. (TOS)
-997,800 The city around the Guardian of Forever is built (TOS - City on the edge...)
-11,800 The Klingon Senate Hall is built
-10,000 Vulcan is at war with itself
-2,737 Spock and McCoy end up in Sarpeidon's past - Zarabeth becomes pregnant with Spock's son (Zar) (Novel 'Yesterdays Son')
-869 Kahless the Unforgettable unites the Klingons - The Bat'leth is invented
-67 Surak Born. He will eventually stop the fighting on Vulcan.
150 A group of 80,000 Vulcans leave after losing the last war, using sub light ships. Contact with this group is lost and their descendants will form the Romulan Empire
1368 Kamen (aka Picard) lives a lifetime on Kataan. A probe is launched before Kataan's sun goes Nova, and will eventually be found by the Enterprise-D (Inner Light)
1893 Data comes to the past accidentally, and loses his head. (TNG - Time's Arrow)
1930 Transported to the past by the Guardian of Forever, Kirk stops McCoy from saving Edith Keeler. (TOS - City on the edge...)
1957 Humanity begins exploration of space with launch of Sputnik
1962 Khan Noonian Singh born (Space Seed)
1986 Kirk and co. come back in time to get some whales to repopulate the species in the 23rd century. (Star Trek IV The Voyage Home) "There be WHALES here!"
1992 Beginning of the Eugenics Wars (sometimes called the third world war because it starts out mainly in third world countries).
1996 The end of the Eugenics wars as Khan and the other supermen are sent into space on the Botany Bay in suspended animation (Space Seed). The Voyager makes it to Earth, only for a short time.

21st to 24th Century. Click on a year (or the plus sign) to zoom in.

The Timelines are, from top to bottom: TOS, TNG, DS9 and Voyager, Others.

Federation History

Note: this final part combines the timelines of the various Star Trek series, including retcons that periods of Star Trek future history not mentioned in the first series. It also contains speculation from fans and backstage sources that are not canon.

Pre-Federation history

Although no single individual is responsible for the foundation of the United Federation of Planets, Zefram Cochrane, the inventor of the warp drive is indirectly responsible for the event.

The Federation mainly evolved from Earth history and in 2043 the Third World War (between the United States of America and a successor state of the USSR called the Eastern Coalition) erupted. It lasted for ten years and 600 million people perished in the nuclear war. In 2053 a uneasy truce was signed. Around this time Zefram Cochrane began his construction of the first warp capable vessel of humanity, the Phoenix.

On April 5 2063 at 11:15 Cochrane made humanity's first warp flight. His warp signatures were detected by a Vulcan survey ship which landed in the evening and made First Contact with humanity. The Vulcans repaired the nuclear damage done to Earth and Zefram Cochrane inaugurated an era of peace in which poverty and disease would become non-existent.

In the years after 2063 most of Earth's remaining states were disbanded. Cochrane's warp design was applied to all Earth spacecraft and human colonies were formed at Mars and beyond.

Exploration of space gradually continued and in 2150 Earth was finally united when Australia surrendered its independence.
In 2151, an Earth organization known as Starfleet Command launched an exploratory vessel NX-01 Enterprise, to boldly go where no man has gone before.

A multi-species race from the Delphic Expanse known as the Xindi sent a probe to attack Earth in 2153 after being informed that they would supposedly be destroyed by humanity in the 26th Century. After being informed by the Suliban that the Xindi were working on a probe designed to destroy Earth completely, the NX-01 Enterprise was sent to find out more about the probe and to stop its construction.

The probe unfortunately made it to Earth and was just about to finish up humanity when the Vulcans and the Andorians finally put aside their differences and destroyed the weapon, thanks to the NX-01 Enterprise sending out a distress call to them and because of the Xindi launching an unprovoked attack on both Vulcan and Andorian fleets after considering them a threat to the weapon. The conclusion of the human-Xindi conflict improved relations between Earth, Vulcan and Andoria and after some coercing convinced the Xindi that humanity was not the "ruthless alien species" that they thought.

In 2158 the USS Balboa encountered the xenophobic Romulans and humanity's first interstellar war followed. The Romulans eventually took the offensive, attacking numerous human colonies and ultimately levelling half of Starfleet Headquarters on Earth, killing Admiral Forrest. Although on the brink of victory, the Romulan Star Empire suffered its greatest defeat ever in the Battle of Cheron in 2160.

In ultimate retaliation of the Romulans' attack on Earth, the NX-01 Enterprise and several other vessels went into battle with several Romulan battleships over the Romulan home world Romulus. Out of the 15 Romulan ships, 14 were destroyed and the other one was disabled, with the death of the Romulan admiral as well. The Yorktown also went to the surface of Romulus and levelled a lot of the capital city of Cheron, killing over 50,000 Romulans. The Romulans soon afterwards signed a peace treaty establishing the Neutral Zone.

Early Federation period

On 12 August 2161 the Vulcans, Andorians, Tellarites and Earth founded the United Federation of Planets, an organization based on exploration and interstellar peace. In 2218 the first major first contact with another extra-terrestrial race, the Klingons, was made. The first contact was unsuccessful and a century-long war erupted.

In the 2260s the actions of James T. Kirk, the captain of the Starship Enterprise helped the Federation gain the upper hand. In 2265 the Organian Peace Treaty was signed which ended major engagements, but the two intergalactic powers remained in a state of cold war. In 2293 the moon Praxis orbiting the Klingon homeworld Qo'noS, exploded destroying the Empire's economy and military capacity. Chancellor Gorkon initiated peace talks but en route to the conference he was assassinated by Klingons opposed to the peace process. His daughter Azetbur continued the conference against all odds, and as a result the Khitomer Accords were signed effectively ending the war.

Early-24th century history

The Khitomer Accords significantly reduced the tensions between the Klingon Empire and the Federation and two decades of relative peace followed.

But in 2311 the Tomed Incident occurred in which thousands of Starfleet personnel died and Romulan outposts disappeared. The unrest was ended by the Treaty of Algeron which re-affirmed the Neutral Zone and prohibited Federation development of cloaking technology. From the 2320's onward the development of the Ambassador class triggered a new period of Federation exploration. Large parts of the Alpha and Beta Quadrant were charted.

In 2345 the Romulan Star Empire launched an assault on the Klingon outpost at Narendra III but the attack was thwarted by the USS Enterprise-C under the command of Captain Rachel Garrett (in an alternate timeline none of this happened and this had unforeseen consequences). Although the Enterprise-C was lost with all hands the Klingons saw its destruction to save them as a brave and honourable deed and relations were significantly improved.

Mid-24th century history

In 2363, the Federation's finest flagship, Galaxy class USS Enterprise-D was launched under the command of Captain Jean-Luc Picard. They continued the fine tradition of its predecessors to go boldly where no one has gone before.

In 2365, the Federation had first formal contact with the Borg (previous accounts of the Borg were sketchy at best), who soon later threatened the existence of the Federation, at the Battle of Wolf 359. Other events of this era include the Klingon Civil War, the meeting of Q, and various time travel incidents.

The Cardassian War

Around the same time the Federation made contact with a race called the Cardassians. There were no diplomatic problems until the Federation found out the Cardassians had brutally enslaved the Bajorans. Disputes over territory arose and in 2347 war was declared by the Cardassians. The war was lengthy and bloody, but the Federation being technologically superior won the war and in 2366 the Demilitarized Zone was established between the Empires. Because of this, some Federation and Cardassian colonies were situated in each others territory, therefore an agreement was reached for the transfer of those colonies.

But some Federation colonists were opposed to the agreement and formed the Maquis, a rebel movement who resisted the Cardassians in the area.

Dominion War

In 2373, the Federation and Klingon Empire engaged in war with the Dominion and the Cardassians. Deep Space Nine, the Cardassian fortress reconfigured for Federation use, was one of the most pivotal locations for the war. In 2375, the war had included the Romulans and the Breen, and in a turning point for the quadrant, the Cardassians turned on their Dominion rulers, assisting the Federation Alliance to win the war against the Dominion.

Peace in our time?

In 2374, the Borg launched a second ship to try to assimilate Earth but again were thwarthed by humanity. However, the Borg tried a last ditch plan and went back in time to 2063 in the hopes of preventing Cochrane's warp flight and assimilate humanity in the past. In the end, however, the Enterprise-E prevented this sabotage and was able to keep the future as it was.

In 2376, a law passed through unbeknownest to the Federation Council that allowed it to help a race known as the Son'a to move 600 Ba'ku from their world in the Briar Patch in order to process the energy in the planet's rings in order to expand people's lives. Again, the Enterprise-E came to the rescue and stopped the evacuation of the Bak'u and sabotaged the energy from being taken away. After some time, hostilites diminished and the Son'a and Bak'u came to live together as they used to.

In 2379, a Reman Preator named Shinzon took over the Romulan Senate on Romulus in an attempt to falsify an idea to have peace talks between the empire and the United Federation of Planets. As it turned out, it was a trick by Shinzon to lure Picard into Romulan space so that he could transfuse Picard's blood into himself to be saved. When Shinzon's idea of attacking Earth was uncovered, the Enterprise-E eventually engaged in battle with Shinzon's Scimitar in order to stop him. Commander Data was ultimately lost when he fired a phaser into the Scimitar's thaleron chamber, ultimately saving the Enterprise. This opened up real peace talks between the Federation and the Romulan Star Empire.

Possible future

Prominent in some possible timelines is the Temporal Cold War, waged on a number of fronts throughout time including the 28th and 31st centuries.

By the 29th Century, the Federation explores time as it once did space.

By the 31st century, indications are that the Federation no longer exists. One location on Earth had a statue in its honour.


I have always liked Star Trek. I watched the original show in the 60's (Black and White days!!), waited patiently and eagerly for the first film in the 70's, and then later in the 80's got hooked all over again on Star Trek: The Next Generation.

This has been very good television, good science fiction, and many times good films. Some things, nevertheless, have driven me crazy:

Picard and Riker both giving commands, in tandem, on the bridge is absurd.
One person has the conn or has the deck on a ship, and it is dangerous to have any confusion about that.
As Executive Officer, Riker wouldn't even be on the bridge in ordinary circumstances.
There doesn't seem to be anything like a regular watch on the bridge. In one show a big point is made that only a full commander can have bridge command, but nothing is more common on the show than to have scenes where all the senior officers of the ship are in some conference or other, leaving who knows who directing the ship on the bridge--unless there are full commanders who aren't part of the regular cast.
The writers don't seem to know what naval lieutenants are for, i.e. they are to be the Officers of the deck.
And Star Trek has never known what admirals are for. The first Star Trek movie has a farcical conflict over whether Admiral Kirk or the newly assigned captain will assume command of the Enterprise.
One wonders what Horatio Nelson and Captain Hardy were both doing on the HMS Victory.
Later, Star Trek: The Next Generation refers to the Enterprise as the "flag ship" of Star Fleet, without apparently realizing that a flag ship is a ship with a "flag," i.e. a flag officer, an admiral.
A Star Trek admiral seems to be some kind of shore officer.


START WITH THE YEAR to give you the basic stardate range
Reminder, the first stardate was in the year 2323. Dates after this, will be positive numbers, and dates before will always show as negative. For example 2003 will be -320 and 2363 will be 40.
FIGURE OUT HOW MANY FULL DAYS into the year you are
take your time...
divide minutes by 60, hours by 24...
remember that only at midnight has a full day passed...
so for example January 10 at noon is not 10 full days, it's 9.5 days

1 more exercise... let's try it both directions!

What stardate corresponds to noon on September 6, 2375?

What day and time would correspond to Stardate 64532.9246?


2375 corresponds to stardate 52000-52999
September 6, noon is 248.5 days
Divide by 365.25 = 0.6803559206
Multiply by 1000 = 680.3559206
Stardate 52680.3559 [Happy Birthday to Adge]

64532.9246 corresponds to the year 2387
532.9246 / 1000 = 0.5329246
multiply by 365.25 = 194.6507 days
which is .6507 days into July 14, or 3:37pm [Whose birthday!]

The quick mathematics:
minutes divided by 60
hours divided by 24
add the number of full previous days
divide by 365.25
multiply by 1000
account for the year

To go to the LCARS Stardate calculator click here


TOS 30 years

TOS Line

Last edited by Adge - January 2013

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