The timestream.

This timeline covers events in the Star Trek universe from the beginning of time to the end of the 19th century.

History[edit | edit source]

Memory Beta Chronology
Distant Past Recent Past 20th Century 21st Century 22nd Century 23rd Century 24th Century 25th Century Far Future

Billions of years ago[edit | edit source]

Title Series Date Media Notes Image
Time. And Time. And Time Again.

(Past)
The Original Series 172,000,000,000 BC comic While preparing to beam down to planet Turages, a transporter malfunction sends Uhura back 172,000,000,000 years in time to a prior universe, where she encounters a gigantic beast.
Death Wish

(Past)
Voyager 13,700,000,000 BC episode The Big Bang; Quinn transports USS Voyager to this time period. Death Wish.jpg
Crucible

The Star to Every Wandering

Chapter 10, Epilogue
The Original Series 5,000,000,000 BC novel James T. Kirk visits the Guardian of Forever billions of years prior to the formation of Earth's sun. Crucible3.jpg
The Q Continuum

Q-Space

Chapter 11
The Next Generation 5,000,000,000 BC novel QC1.JPG
Spock's World

Vulcan: One
(Flashback)
The Original Series 5,000,000,000 BC novel SpocksWorld.jpg
Strange New Worlds II

Reciprocity

(Flashback)
The Next Generation 4,000,000,000 BC short story SNWII.jpg
All Good Things...

Chapter 20, section 5
The Next Generation 3,500,000,000 BC episode
novelization
The formation of the first proteins on Earth. EarlyFrance.jpg
The Q Continuum

Q-Space

Chapter 13
The Next Generation 2,500,000,000 BC novel QC1.JPG
The Q Continuum

Q-Zone

Chapter 2
The Next Generation 1,000,000,000 BC novel QC2.JPG

Millions of years ago[edit | edit source]

Title Series Date Media Notes Image
The Escape

Chapters 12, 17, 19 & 23
Voyager c.444,800,000 BC novel The Escape.jpg
First Frontier

Chapters 23-38
(Time Travel)
The Original Series 64,018,143 BC novel FirstFrontier.jpg

Thousands of years ago[edit | edit source]

Title Series Date Media Notes Image
Spock's World

Vulcan: Two
(Flashback)
The Original Series c.500,000 BC novel SpocksWorld.jpg
The Escape

Chapters 4, 5-7 & 23
Voyager c.307,600 BC novel The Escape.jpg
Strange New Worlds VI

The Beginning

(Flashback)
Speculations c.200,000 BC short story Offers one version of the creation of the Borg.

The Pocket Books Timeline places this story at c. 2000BC, however the short story "The Hunted" describes Borg activity 110,000 years ago necessitating an earlier placement for the Borg's creation.
Strange new worlds 6.jpg
Strange New Worlds VII

Forgotten Light

Sections 1, 4, 6, 8, 10 & 12
Speculations c.200,000 BC short story Offers one version of the creation of the Borg.
The Pocket Books Timeline places this story at c. 2000BC, however the short story "The Hunted" describes Borg activity 110,000 years ago necessitating an earlier placement for the Borg's creation.
Strange new worlds 7.jpg
What Lay Beyond

Horn and Ivory

Chapters 1-9
Deep Space Nine c.27,600 BC novella What Lay Beyond.jpg
Watching the Clock

Chapter 18
Star Trek c.16,000 BC novel Watching the Clock cover.jpg
Spock's World

Vulcan: Three
The Original Series c.10,000 BC novel SpocksWorld.jpg
Ex Machina

Chapter 18
The Original Series 7954 BC novel ExMachina.jpg
Destiny

Lost Souls

Chapters 2, 8, 14 & 20
Star Trek 4527 BCE novel Lost Souls.jpg
Spock's World

Vulcan: Four
The Original Series c.3,000 BC novel SpocksWorld.jpg
All Our Yesterdays

(Past)
The Original Series 2723 BC episode Sarpeidon's past, date extrapolated from The Yesterday Saga Spock and Zarabeth.jpg
The Yesterday Saga

Yesterday's Son

Chapters 5 & 6
The Original Series 2703 BC novel YesterdaysSon.jpg
The Yesterday Saga

Time for Yesterday

Prologue, Chapters 5-10, 14 & 15
The Original Series 2683 BC novel Time For Yesterday.jpg
Uhura's Song

Chapter 11
The Original Series 235 BC novel The Eeiauoan people are exiled from their homeworld of Sivao, because of their unsustainable use of technology. UhurasSong.jpg
Spock's World

Vulcan: Five
(Flashback)
The Original Series 30 BC novel SpocksWorld.jpg

Appendices[edit | edit source]

Connections[edit | edit source]

Memory Beta Chronology
Distant Past Recent Past 20th Century 21st Century 22nd Century 23rd Century 24th Century 25th Century Far Future
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