The Five Year Mission: Month By Month


This chronology was alot of fun to figure out.  And very useful for keeping things consistent in any future timelines I work on.  I have to thank everyone over at the Trek BBS who contributed an immense amount of help in getting this all figured out.  Especially Idran who helped me understand all the data points in the Vanguard series.  Here's the thread in which we built this timeline and ironed out alot of difficulties.  A Lit-verse Based TOS Chronology.  I'll add notes about the reasoning behind all the placements of stories, but for now I just wanted to get the bare timeline up and all in one place.

Pre 5YM

August 2265

  • Mere Anarchy: Things Fall Apart

September 2265

  • 1x01- Where No Man Has Gone Before

October 2265

  • VAN: Harbinger

  • Alien Spotlight: Romulans II

November 2265

  • VAN: Summon the Thunder

Year One

December 2265


January 2266

  • VAN: Reap the Whirlwind

  • 1x02- The Corbomite Maneuver

  • VAN: Hard News

  • The Landing Party

February 2266

  • 1x03- Mudd's Women

  • 1x04- The Enemy Within

  • 1x05- The Man Trap

March 2266

  • 1x06- The Naked Time

  • The Captain's Table, Book 6: Where Sea Meets Sky

April 2266

  • 1x07- Charlie X

  • The First Artifact

  • Alien Spotlight: Romulans

May 2266

  • 1x08- Balance of Terror

  • Shadow Lord

  • The Peril of Planet Quick Change: The Creatures of Light

  • The Peril of Planet Quick Change: The Sinister Guest

  • Errand of Vengeance, Book 1: The Edge of the Sword

June 2266

  • 1x09- What Are Little Girls Made Of?

  • Errand of Vengeance, Book 2: Killing Blow

  • Errand of Vengeance, Book 3: River of Blood

July 2266

  • 1x10- Dagger of the Mind

  • 1x11- Miri

August 2266

  • 1x12- The Conscience of the King

  • 1x13- The Galileo Seven

September 2266

  • 1x14- Court Martial

  • The Avenger

October 2266

  • 1x15- The Menagerie, Part 1

  • 1x16- The Menagerie, Part 2

  • 1x17- Shore Leave

November 2266

  • 1x18- The Squire of Gothos

  • 1x20- The Alternative Factor

Year Two

December 2266

  • 1x21- Tomorrow is Yesterday
  • The Aliens Are Coming!

  • 1x19- Arena

January 2267

  • 1x22- Return of the Archons
  • SCE: Foundations, Book Two

  • 1x23- A Taste of Armageddon

  • 1x24- Space Seed

February 2267

  • 1x25- This Side of Paradise
  • 1x26- The Devil in the Dark

  • Official Record

March 2267

  • Errand of Fury, Book 1: Seeds of Rage

  • Errand of Fury, Book 2: Demands of Honor

  • 1x27- Errand of Mercy

  • Errand of Fury, Book 3: Sacrifices of War

  • VAN: Open Secrets

April 2267

  • 1x28- The City on the Edge of Forever

  • 1x29- Operation- Annihilate!
  • Final Frontier
  • The Leader

  • Ishmael

May 2267

  • 2x01- Catspaw
  • Ambition

  • 2x02- Metamorphosis

  • Chaotic Response

  • 2x03- Friday's Child 

  • Invasion!, Book 1: First Strike

June 2267

  • Mere Anarchy: The Centre Cannot Hold

  • 2x06- The Doomsday Machine

  • 2x04- Who Mourns for Adonais?

  • 2x07- Wolf in the Fold

  • 2x08- The Changeling

July 2267

  • 2x05- Amok Time
  • See No Evil

  • 2x09- The Apple

  • 2x10- Mirror, Mirror

August 2267

  • 2x15- Journey to Babel
  • 2x11- The Deadly Years

  • Romulans: The Hollow Crown, Issue One

  • The Vulcan Academy Murders

September 2267

  • The IDIC Epidemic
  • 2x12- I, Mudd

  • The Shocks of Adversity

October 2267

  • 2x13- The Trouble With Tribbles

  • A Bad Day For Koloth

    • 2x14- Bread and Circuses

    • Mission to Horatius

    • Twilight's End

    November 2267

    • Lecagies: Captain to Captain
    • First, Do No Harm

    • 2x16- A Private Little War

    Year Three

    December 2267

    • 2x17- The Gamesters of Triskelion
    • 2x18- Obsession

    • Legacies: Best Defense

    • VAN: Precipice

    January 2268

    • Legacies: Purgatory's Key
    • VAN: The Ruins of Noble Men

    • 2x19- The Immunity Syndrome

    • 2x20-A Piece of the Action

    February 2268

    • New Visions: Strange New Worlds
    • The First Peer
    • 2x21- By Any Other Name

    • 2x22- Return to Tomorrow

    March 2268

    • A Choice of Catastrophes
    • 2x23- Patterns of Force

    • Uhura's Song

    • VAN: The Stars Look Down

    April 2268

    • 2x24- The Ultimate Computer
    • 2x25- The Omega Glory

    • 2x26- Assignment: Earth

    • Assignment- Earth

    • From History's Shadow

    May 2268

    • 3x01- Spectre of the Gun

    • 3x02- Elaan of Troyius

    June 2268


    July 2268

    • 3x03- The Paradise Syndrome

    • Romulans: The Hollow Crown, Issue Two

    • 4x12- The Time Trap

    August 2268

    • 3x04- The Enterprise Incident
    • SCE: Where Time Stands Still
    • 3x05- And the Children Shall Lead

    • Dreams of the Raven

    September 2268

    • 3x06- Spock's Brain
    • How Much For Just the Planet

    • 3x07- Is There in Truth No Beauty?

    • Ghost-Walker

    October 2268

    • 3x08- The Empath
    • VAN: What Judgments Come

    • 3x09- The Tholian Web

    • Devices and Desires

    November 2268

    • Section 31: Cloak

    • 3x10- For the World is Hollow and I Have Touched the Sky

    Year Four

    December 2268

    • 3x11- Day of the Dove
    • 3x12- Plato's Stepchildren

    • First Frontier

    January 2269

    • 3x13- Wink of an Eye

    • 3x14- That Which Survives

    February 2269

    • Gateways, Book 1: One Small Step

    • Gateways: One Giant Leap

    • 3x15- Let That Be Your Last Battlefield

    • VAN: Storming Heaven

    • VAN: In Tempest's Wake

    March 2269

    • 3x16- Whom Gods Destroy

    • 3x23- All Our Yesterdays

    • 3x17- The Mark of Gideon

    April 2269

    • 3x22- The Savage Curtain
    • 3x18- The Lights of Zetar

    May 2269

    • 3x19- The Cloud Minders

    • Crisis on Centaurus

    • 3x20- The Way to Eden

    • 3x21- Requiem for Methuselah

    June 2269

    • 3x24- Turnabout Intruder

    • As Others See Us

    • Memory-Prime

    July 2269


    August 2269

    • SKR: Second Nature

    • SKR: Point of Divergence

    September 2269

    • Prime Directive
    • New Visions: A Scent of Ghosts

    • Killing Time

    • Fracture

    October 2269

    • The Entropy Effect
    • That Which Divides

    • The Face of the Unknown

    • The Latter Fire

    • 4x02- Yesteryear

    November 2269

    • SKR: Long Shot
    • SKR: All That's Left

    • 4x01- Beyond the Farthest Star

    • 4x03- One of Our Planets is Missing

    • 4x04- The Lorelei Signal

    • 4x05- More Tribbles, More Troubles

    Year Five

    December 2269

    • 4x06- The Survivor
    • 4x07- The Infinite Vulcan

    • The Unhappy Ones

    • 4x08- The Magicks of Megas-Tu

    • 4x09- Once Upon A Planet

    January 2270

    • 4x10- Mudd's Passion
    • 4x11- The Terratin Incident
    • 4x14- The Slaver Weapon

    • 4x15- The Eye of the Beholder

    February 2270

    • 4x16- The Jihad
    • 5x01- The Pirates of Orion

    • 5x02- Bem

    • 5x03- The Practical Joker

    March 2270

    • 5x04- Albatross

    • 5x06- The Counter-Clock Incident

    • Romulans: Schism

    • The Galactic Whirlpool

    • The Abode of Life

    April 2270

    • Corona

    • Mindshadow

    • Demons

    May 2270

    • Chain of Attack
    • Bloodthirst

    • The Final Nexus

    • Yesterday's Son

    June 2270

    • 4x13- The Ambergris Element

    July 2270

    • 5x05- How Sharper Than A Serpent's Tooth

    August 2270

    • Allegiance in Exile

    • Dying of the Light

    • None But the Brave

    • Crossroad

    September 2270

    • The Eugenics Wars, Volume One

    • The Eugenics Wars, Volume Two

    • Troublesome Minds

    • The Rings of Time

    • No Time Like the Past

    October 2270

    • Savage Trade
    • Dreadnaught!

    • Battlestations!

    • Where Everybody Knows Your Name

    November 2270

    • Star-Crossed: A Bright Particular Star
    • The Lost Years


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