Interstellar history
See also: History
Interstellar history was the term for the timeline of events and was a course at Starfleet Academy. ()

The distant past 
Main article: Distant past

Billions of years ago 
16 billion years ago

The universe comes into being through a massive explosion known as the Big Bang, gradually condensing into the more standard forms of matter and energy known in present time. At least two members of the Q Continuum, visiting from the future, are known to have taken refuge at the beginning of the cosmos, with one, later known as Quinn, also attempting to conceal the  in the maelstrom. ()

~ +5 billion years ago

The Guardian of Forever, a sentient time portal of unknown origin and purpose, is created on what will later be known as the time planet at some point preceding the formation of the Sol solar system. ()

~ 4 billion years ago

The first humanoid species known to evolve explored the cosmos, but found themselves alone. Accepting the lifespan of their own race to be ultimately finite, they chose to spread genetic material throughout the oceans of many worlds of the galaxy, including Andor, Bajor, Betazed, Cardassia Prime, Earth, Indri VIII, Ruah IV, Qo'noS, Tellar, , Vilmor II, and , so that life on them would eventually develop on paths similar to their own. The ancient humanoids encoded the genetic seeds they left with a message that would be revealed only when their progeny had developed high degrees of technology and cooperation with one another. () One out of every 43,000 planets in the galaxy would eventually support intelligent life. ()

Hundreds of millions of years ago 
Over five hundred million years later, the first life developed on the planet Earth. By the time, however, there were already other flourishing civilization throughout the galaxy. A notably advanced civilization is that of Bajor, which already established a flourishing civilization 500,000 years prior. At that time, Humans hadn't even learned to walk upright. ().

Humanoid civilizations 
Civilization on Earth began to develop around 5500 BC. Following a classical period of thousands of years, and a millennium of Dark Ages, Human history entered a bright new era or Renaissance, which was the starting point of its advanced civilization.

On other M-class worlds similar to Earth, numerous civilizations developed. After several centuries of technological development, many races became spacefaring around the same time. In 2161 several planets formed what was to become known as the United Federation of Planets, an interstellar organization for economic, social, and military cooperation, with the ultimate goal to protect future generations from intergalactic war and conflict.

United Federation of Planets 
Since its founding in 2161, the Federation expanded considerably in member worlds. By the 24th century, several hundreds of planets and star systems had joined the organization. However, in its history, it has stumbled upon a number of conflicts with neighboring empires.

A long-lasting conflict with the Klingon Empire ended in 2293, when the Khitomer Conference resulted in a peace treaty between the two powers. The ongoing cold war with the Romulan Star Empire, however, lasted until deep into the 24th century. ()

Following the peace with the Klingons, previously considered the Federation's traditional adversaries, a Renaissance period for the Federation began, signified by the construction of large exploration starships and the establishment of numerous colonies throughout Federation space and beyond. However, resistance to expansion of the Federation was encountered and the Federation became embroiled in many conflicts during the 2350s, most notably the Cardassian War. Since the military (Starfleet) was at its greatest strength, a peace treaty was forced upon the Cardassian Union, but the Federation was about to face two of its greatest threats. ()

First contact with the Borg was made in 2365. A conflict with this cybernetic species followed, leading to two major assaults deep into the heart of Federation space. () During the 2370s, contact was made with the Dominion, which hailed from the Gamma Quadrant. The Dominion allied with the Cardassians and later the Breen and began a massive offensive against the Alpha Quadrant. In response the Federation allied with the Klingons and later also the Romulans. The Federation alliance was eventually able to win the war, with assistance from former Dominion ally Cardassia, but it left most of the Alpha Quadrant devastated. ()

A new era of peace with both the Cardassians and the Romulans was now in reach. Having fought side-by-side during the Dominion War, a mutual respect had grown between the powers, and it is likely a peace will be signed shortly. ()

Notable histories of specific civilizations 
Andorian history
Andorian-Vulcan history
Bajoran history
Borg history
Cardassian history
Dominion history
Ferengi history
Federation history
Human history
Human-Klingon history
Human-Romulan history
Klingon history
Klingon-Human history
Klingon-Romulan history
Romulan history
Romulan-Human history
Romulan-Klingon history
Vulcan history
Vulcan-Andorian history
Xindi history

Interstellar events

4th century 
 Time of Awakening on

14th century 
 Hur'q invasion of Qo'noS
 Promellian-Menthar War
 Battle of Orelious IX

18th century 
 Eminiar-Vendikar War

21st century 
 Xindi Civil War: c. 2030s
 First Contact between Humans and Vulcans
 Kzinti Wars

22nd century 
 Temporal Cold War: c. 2150
 Xindi incident
 Augment Crisis
 Battle of Andoria
 Babel Crisis
 Earth-Romulan War: c. 2160s
 Battle of Cheron

23rd century 
 Battle of Donatu V: 2245
 Federation-Klingon War (2267)
 Neutral Zone Incursion
 Battle of Klach D'kel Brakt
 Battle of Caleb IV
 V'ger traverses Klingon space and threatens Earth
 A Whale Probe later traverses Klingon space and threatens Earth
 Khitomer conspiracy

24th century 
 Tomed Incident occurs in 2311
 Occupation of Bajor: 2328-2369
 Bajoran Resistance: 2328-2369
 Federation-Klingon War (alternate timeline): c. 2340s-2366
 Klingon-Romulan conflicts
 Battle of Narendra III in 2344
 Khitomer Massacre in 2346
 Federation-Cardassian War
 Setlik III massacre: ~2347 
 Battle of Narendra III: 2344
 Khitomer Massacre: 2346
 Klaestron Civil War: mid-24th century
 Gentonian trade wars: mid-24th century
 Norkan Campaign: mid-24th century
 Tarsian War: mid-24th century
 Galen border conflict: c. 2357
 Battle of Maxia: 2355
 Federation-Tzenkethi War: c. 2360s
 Battle of Wolf 359
 Klingon Civil War
 Battle of Mempa
 Dominion cold war: 2370-2373
 The Dominion destroys the colony of New Bajor
 The Dominion engages and destroys the 
 Battle of the Omarion Nebula: 2371
 Battle of Veridian III: 2371
 Voyager-Kazon conflict: 2371-2373
 Klingon-Cardassian War: 2372-2373
 First Battle of Deep Space 9
 Federation-Klingon War (2372-73): 2372-2373
 Battle of Terok Nor: 2372 (mirror universe)
 Borg-Species 8472 War: 2373-2374
 Proxcinian War
 Q Civil War: 2373
 Battle of Sector 001: 2373
 Dominion War: 2373-2375
 Second Battle of Deep Space 9: 2373
 Battle of Torros III
 Operation Return: 2374
 Battle of Betazed
 First Battle of Chin'toka
 Raid on Trelka V: 2375
 Battle of Ricktor Prime
 Second Battle of Chin'toka
 Breen attack on Earth
 Cardassian Rebellion
 Battle of Cardassia
 Year of Hell 
 Iden's Rebellion
 Battle in the Bassen Rift: 2379

Conflicts of the possible future 
26th century
 Battle of Procyon V
31st century
 Temporal Cold War

Conflicts with indeterminate dates 
 Battle of Vorkado
 Battle of Prexnak
 Battle of Zambrano
 Betreka Nebula Incident
 Ersalrope Wars
 Kenzie Rebellion

See also 
 Galactic history

de:Interstellare Geschichte
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pl:Historia międzygwiezdna
History
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