24th Century

The Battle of Wolf 359 is seen as a turning point of the 24th century

The 24th Century is a span of 100 Earth years that started in 2301 and ended in 2400. The first half of the century marks a notable period of relative peace in the Alpha and Beta Quadrants of the Galaxy. The latter half is marked by several conflicts, catastrophes and devastating wars, shaking the foundations of many of the Alpha Quadrant's major powers.

Timeline

2301-2349

2311

• The Treaty of Algeron is signed, prohibiting the use of cloaking technology by the Federation
• The Romulan Star Empire enters a new period of isolation

2315

• The star of the Xleen System goes supernova

2327

• A Federation colony on Vesper II is established

2328

• The Cardassian Union begins its occupation of Bajor

2343

• The Danteri System is colonized by the Ferengi

2344

• The U.S.S. Enterprise-C is destroyed in the Battle of Narendra III, defending a Klingon colony from Romulan attackers. Coming from an alternate timeline, Natasha Yar is part of the crew and is taken prisoner by the Romulans
• The Federation and the Klingon Empire negotiate a peace treaty

2345

• After becoming the consort of a Romulan General, Natasha Yar gives birth to Sela

2346

• Romulan forces destroy a Klingon colony during the Khitomer Massacre
• Survivors of the massacre, among them Worf, are taken to Starbase 24

2347

• The Federation-Cardassian war ignites

2349

• When Tasha Yar tries to escape from Romulus, her daughter Sela cries out, exposing her mother and causing her to be executed

2350-2369

2351

• Terok Nor is built in orbit of Bajor

2353

• The Borg become aware of Humanity's existence due to a message sent 200 years earlier
• The Treaty of Alliance is signed by the Federation and the Klingon Empire

2354

• The U.S.S. Raven sets out to investigate rumors about the Borg and dissappears

2361

• Development of the Emergency Medical Hologram begins on Jupiter Station

2364

• The U.S.S. Enterprise-D is commissioned under the command of Jean-Luc Picard
• Several Federation and Romulan outposts are destroyed by the Borg
• The Romulan Star Empire comes out of isolation

2365

• Artificial life is granted civil rights within the Federation
• The official first contact between the Federation and the Borg Collective leads to decades of hostile engagements

2366

• Development of the Defiant class begins
• The Borg start their first incursion into the Alpha Quadrant

2367

• The Federation loses 39 starships at the Battle of Wolf 359, among them the U.S.S. Saratoga
• Gowron becomes chancellor of the Klingon Empire
• The Federation and the Cardassian Union sign a peace treaty

2368

• Joshua Albert, a member of the Nova Squadron dies in a flight training accident
• The House of Duras is supported by the Romulan Empire during the Klingon Civil War
• Ambassador Spock assists an underground movement on Romulus, hoping to initiate reunification of the Vulcan and Romulan people

2369

• The occupation of Bajor ends
• Starfleet takes control of Deep Space Nine and discovers the Bajoran wormhole
• Starfleet begins exploration of the Gamma Quadrant
• The clone of Kahless is designated as Emperor of the Klingon Empire

2370-2379

The Treaty of Bajor is signed at Deep Space Nine in 2375.

2370

• Several Federation colony worlds declare war on the Cardassian Union, calling themselves the Maquis
• The U.S.S. Odyssey is destroyed by Jem'Hadar in the Gamma Quadrant

2371

• The U.S.S. Voyager launches under the command of Kathryn Janeway and is lost in the Delta Quadrant
• The Bajoran-Cardassian Treaty is signed
• The Founders infiltrate the Alpha Quadrant
• The Enterprise-D is destroyed

2372

• The Cardassian Union surrenders control of the Trivas System, leaving behind Empok Nor
• The second Federation-Klingon War ignites as the Klingon Empire declares war on the Cardassian Union
• A coup d'état is prevented on Earth after the bombing of the Antwerp Conference
• The Enterprise-E launches under the command of Jean-Luc Picard

2373

• The Federation-Klingon War ends
• The Dominon War begins as the Cardassian Union officially joins the Dominion
• The Borg attempt to assimilate Earth during the Battle of Sector 001
• The Borg invade Fluidic Space for the first time and ignite a brutal conflict with the Undine
• The Maquis suffers a major defeat by the Dominion in the Dubhe System

2374

• The Undine are driven out of the Milky Way by the Borg and the U.S.S. Voyager
• The Romulan Star Empire joins the Federation and Klingon Empire against the Dominion
• Several major battles of the Dominion War take place, including Operation Return and the Battle of Chin'toka
• 2,800 Dominion ships dissappear inside the Bajoran wormhole at the hand of the Prophets

2375

• 2,147 people are killed in a Breen attack on San Francisco
• Martok becomes Chancellor of the Klingon Empire after the death of Gowron
• The Dominion War ends with the Battle of Cardassia and the Treaty of Bajor
• The Undine prepare to infiltrate the Federation for the first time

2376

• Starfleet makes contact with Voyager for the first time since 2371

2378

• The Borg Collective is dealt a crippling blow when one of their transwarp hubs is destroyed
• Voyager returns home after seven years in the Delta Quadrant

2379

• A coup takes place on Romulus and Shinzon declares himself Praetor of the Romulan Star Empire
• The Enterprise-E defeats the Scimitar in the Great Bloom System
• Tal'aura declares herself Praetor of Romulus but both, Donatra and the Reman Xiomek oppose her rule

2380-2389

2380

• Romulan forces begin a blockade of Remus

2381

• The Remans seek an alliance with ambassador Spock's unification movement on Romulus
• Donatra conquers several Romulan worlds and declares herself Empress of the Imperial Romulan State
• Starfleet creates a new Borg task force led by Jean-Luc Picard and former Borg drone Annika Hanson

2382

• A colony is established on Pilatus Prime but evacuated six months later due to seismic activity
• Tal'aura reforms the Romulan senate to increase her power and accepts Federation aide
• Klingon forces repeatedly strike in Romulan territory and occupy Khitomer
• The unification movement of Romulus presents its case to the Federation Council for the first time

2383

• Civil unrest sparks on Romulus and Admiral Taris defects to Donatra's Imperial State
• Reconstruction of Cardassia officially begins with Federation aid
• The Federation's opposition to the Klingon takeover of Khitomer leads to a diplomatic crisis

2384

• Sela is appointed as leader of Tal'aura's military forces
• Tal'aura is murdered on Romulus, leading to further unrest in both Romulan states
• A Gorn ship attacks the I.K.S. Quv, forcing Martok to reinforce military presence at the Klingon-Gorn border

2385

• Starfleet renews its efforts in exploration and scientific research and dismantles its Borg task force
• Seven of Nine cuts ties with Starfleet in protest of the deactivation of the Borg task force. Seven of Nine takes a position with the Daystrom Institute.
• The Enterprise-E assists in the evacuation of non-Klingon residents of Khitomer
• The Romulan states are surprisingly reunited
• Former Tal Shiar leader Chulan is elected as Praetor, while Donatra remains in control of the military
• Remans are granted Romulan citizenship for the first time
• Captain Jean-Luc Picard becomes the Federation ambassador to Vulcan.
• King Slathis of the Gorn takes the throne after the death of his father.

2386

• A Reman colony is established on Crateris
• Accusations about Tal'aura's murder lead to new unrests in the Romulan Empire
• The Klingon-Gorn crisis leads to several skirmishes and battles
• Civil unrests take place on Ferenginar after reforms initiated by Grand Nagus Rom
• The Federation-Cardassian Treaty is signed and the Cardassian military decommissioned
• Gul Madred begins mining operations in the Shahr System, likely as a cover to form the True Way movement
• Starfleet updates its uniform code to allow officers to choose from several different uniforms.
• Data becomes captain of the Enterprise-E.

2387

• Ambassadors Spock and Jean-Luc Picard appeal to the Vulcan Science Academy to assist the Romulanswith the Hobus supernova. The Vulcans refused.
• Sela commands a fleet of ships and leaves for the Delta Quadrant
• Donatra, the leader of the Romulan Star Empire, is presumed killed when her ship disappears.
• The Hobus star goes supernova, devastating Romulus, Remus and several other Romulan worlds
• Starfleet establishes an outpost in the Chiron System to coordinate relief efforts in the Romulan Empire
• Rashana Colony gains independence from the Romulan Star Empire, several other worlds follow
• Hassan the Undying assassinates Raimus, opening the way for Hassan's employer, Melani D'ian, to take over the Orion Syndicate.

2388

• Several colony worlds claim leadership of the Romulan Star Empire, among them Rator III
• The Klingon Empire refuses to aid the Federation with its relief efforts in Romulan space
• The Orion Syndicate considers cooperation with both the Klingon Empire and the Breen
• K'Dahn, son of Worf, is born.

2389

• The Klingon Empire launches attacks against several worlds in Romulan and Gorn space
• The Gorn ally themselves with the Nausicaans to withstand these renewed armed conflicts
• The Detapa Council is reestablished as the government body of the Cardassian Union
• Gul Madred begins building mining operations in the Alpha Quadrant
• Holoprojectors become standard equipment on Starfleet vessels, allowing for holographic crew members.

2390-2400

2391

• Admiral Taris manages to establish a new Romulan fleet
• The Federation Supreme Court deals with civil rights of Photonic lifeforms for the first time
• Photonic activists establish a colony in the Ra'kholh System
• Gul Madred stirs unrest in Cardassian Society with his "True Way" movement
• The Enterprise-E discovers hints of Species 8472 activity in the McAllister C-5 Nebula

2391

• Starfleet pulls back from the Romulan-Klingon border to protect civilian ship routes against Nausicaan raids
• Starfleet-mediated peace talks between the Klingon Empire and the Gorn break down
• Fleets of Romulan Admiral Taris and Klingon Councilor J'mpok clash in Zeta Pictoris. Taris forces the Klingons to retreat from the system.
• After a victorious battle, Taris is proclaimed leader of the Romulan Star Empire
• Cardassia and the Ferengi Alliance sign important trade agreements
• Photonic lifeforms are denied civil rights by the Federation Supreme Court

2393

• Melani D'ian, leader of the Orion Syndicate, signs an alliance with J'mpok and the Klingon Empire. As a gift, she sends 1,500 women to be servants in the Klingon Great Houses.

2394

• The colonists of Rhea III vote against re-joining the Romulan Empire
• The Supreme Court of the Federation rules that The Doctor is a sentient artificial lifeform. He serves as Chief Medical Officer at the Starfleet research facility on Galor IV.

2395

• Ja'rod, son of Lursa, is ambushed by strange tripedal aliens while on shore leave. He defeated these aliens--designated Species 8472 or the Undine--and brings one back to his ship for questioning. Ja'rod learns the alien was sent to kill him and take his place.
• Vulcans celebrate the 225th anniverary of the completion of work on the rebuilt monastery at P'jem.

2396

• A Tazani-Federation research station is commissioned in orbit of Tazi
• Ja'rod, son of Lursa, kills Captain Klor of the I.K.S. Kang after Klor refuses to investigate Undine infiltrations in Alpha Quadrant.
• Starfleet intelligence removes Captain T'vix of the U.S.S. Cochrane and two of her senior officers. Records relating to this incident have been sealed.

2394

• The I.K.S. Kang crosses into Gorn space in its investigation of the Undine infiltration.

2398

• The Federation Council approves a dual citizenship program for members of species who are allies of the Federation but not members. This opens the door for thousands of new applicants to Starfleet Academy

2399

• The I.K.S. Kang returns to Qo'noS with evidence the Undine are controlling the Gorn Hegemony and are responsible for the conflict with the Klingon Empire.
• J'mpok declares war on the Gorn after receiving proof of the Undine infiltration of the Gorn Hegemony.
• A combined Orion and Klingon fleet invades Gorn space in 2399 and clashes with a Gorn and Nausicaan fleet protecting their key worlds.
• The Klingons withdraw from the Khitomer Accords after the Federation Council condemns the Klingon invasion of the Gorn Hegemony

Other notable events

Births

• Jean-Luc Picard (2305, Earth)
• Benjamin Sisko (2332, Earth)
• Data (2336, Omicron Theta)
• Worf (2340, Qo'noS))
• Kathryn Janeway (2336, Earth)
• Sela (2345, Romulus)
• Kahless (2369, Boreth)
• Icheb (2360s or '70s, Brunali Homeworld)
• Naomi Wildman (2372, U.S.S. Voyager)
• Miral Paris (2378, U.S.S. Voyager)

Deaths

• Sarek (2368)
• James T. Kirk (2371)
• Boothby (2382)
• Spock (2387, assumed)

First Contacts (United Federation of Planets)

Official

• Crystalline Entity (2336)
• Ferengi (2364, several earlier encounters)
• Q (2364)
• Borg (2365, several earlier encounters)
• Gekli (2367)
• Prophets (2369)
• Jem'Hadar (2370)
• Vorta (2370)
• Dominion (2370)
• Founders (2371)
• Undine (2373)
• Hirogen (2374)

Missions

• “State of Q” (2367)
• “Of Bajor” (2375, recordings only)