2269 (Columbia)

Stardate 1254.4: While exploring near the center of the galaxy, the Enterprise is caught inside an energy/matter vortex and all her computer systems fail. A being named Lucien appears on the bridge, repairs the ship's systems and takes the crew to explore his planet, Megas-Tu. (TAS 09: "The Magicks of Megas-Tu")
Stardate 3183.3: A strange energy field causes the Enterprise computer to play practical jokes on the crew, but the humor soon turns to danger. (TAS 20: "Practical Joker")
Stardate 4187.3: In the Shuttlecraft Copernicus, Mr. Spock, Uhura, and Sulu are en route to Starbase 25 to deliver a stasis box—a rare artifact of the Slaver culture when the Kzinti intervene. (TAS 11: "The Slaver Weapon")
Stardate 4978.5: The Enterprise receives orders to arrest Federation outlaw Harry Mudd, who is accused of selling fake love crystals. Intercepting Mudd on the mining colony of Motherlode, they bring him aboard the Enterprise. (TAS 08: "Mudd's Passion")
Stardate 5143.3: Patrolling near the Romulan Neutral Zone, the Enterprise finds a ship manned by Carter Winston, a Federation citizen and philanthropist who has been missing for five years. (TAS 05: "The Survivor")
Stardate 5221.3: While exploring on the outermost rim of the galaxy, the Enterprise is pulled into the orbit of a dead star. Trapped there, the crew discovers that there is an ancient derelict pod ship trapped with them as well. (TAS 04: "Beyond the Farthest Star")
Stardate 5267.2: While exploring the Delta Triangle, where many starships have disappeared, the Enterprise is attacked by several Klingon vessels. During the battle they are caught in an ion storm. The Enterprise and one Klingon battlecruiser are drawn into a spacetime vortex and end up in a timeless dimension. (TAS 10: "Time Trap")
Stardate 5275.6: Doctor McCoy is arrested for allegedly causing a deadly plague, which once ravaged the planet Dramia. (TAS 18: "Albatross")
Stardate 5371.3: The Enterprise encounters a giant cloud creature that feeds on the energy of the planets that lie in its path. They determine it is heading for Mantilles, home to a Federation colony governed by former Starfleet officer Bob Wesley. (TAS 07: "One of Our Planets is Missing")
Stardate 5373.4: Spock must travel to the past to rescue his younger self from danger. (TAS 03: "Yesteryear")
Stardate 5392.4: While the Enterprise escorts two robot cargo ships carrying quintotriticale, a new seed grain, to famine stricken Sherman's Planet, it encounters a Klingon battlecruiser pursuing a Federation scout ship. When the Enterprise rescues the pilot, the Klingons attack with a new energy weapon and demand that the pilot be handed over to them. (TAS 01: "More Tribbles, More Troubles")
Stardate 5483.7: Investigating a sector of space where starships have disappeared every 27 years, the Enterprise finds a race of beautiful women living on a hidden planet. (TAS 06: "The Lorelei Signal")
Stardate 5499.9: While exploring the water planet Argo, Captain Kirk and Mr. Spock are transformed into water breathers by the planet's undersea inhabitants, the Aquans. In order to return to their normal selves, they must enlist the help of the Aquans to capture a giant sur-snake, whose venom holds the antidote. (TAS 13: "The Ambergris Element")
Stardate 5501.2: The disappearance of a scientific team lures the Enterprise to investigate near Lactra VII. The starship Ariel is located there, abandoned, with its captain having transported to the planet's surface. (TAS 16: "The Eye of the Beholder")
Stardate 5554.4: While visiting the newly discovered planet Phylos, Lieutenant Sulu picks up a walking plant, called a Retlaw, and is poisoned. The alien species that inhabits the planet, who are plantlike beings, approach and save Sulu's life. (TAS 02: "The Infinite Vulcan")
Stardate 5577.3: While observing a burned-out supernova, the Enterprise picks up a strange message transmitted in a two-hundred-year-old code. (TAS 15: "The Terratin Incident")
Stardate 5592.1: The Enterprise crew revisits the "amusement park" planet, hoping for some rest and relaxation. (TAS 14: "Once Upon a Planet")
Stardate 5683.1: The Enterprise arrives at the Vedala asteroid, where Captain Kirk and Mr. Spock have been summoned to learn about a stolen religious artifact, the "Soul of the Skorr", whose theft could ignite a galactic holy war. (TAS 12: "Jihad")

February

Stardate Unknown: (6 months after "Storming Heaven," 2 months after "Turnabout Intruder") (Seekers #1: "Second Nature")
Stardate Unknown: (Seekers #2: "Point of Divergence")

May

Stardate Unknown: ("a few months" after "Point of Divergence") (Seekers #3: "Long Shot")
Stardate Unknown: (Seekers #4: "All That's Left")

Prev: Chronology: 2268

Next: Chronology: 2270