This is a True and Accurate timeline of the world of Eberron. I noticed that other Eberron timelines posted around the internet were incorrect. Many of the dates listed were off by about 1,000 years. with the one exception of Christopher J. Monte's "The Grand History of Eberron" (which technically is more than just a timeline).
This timeline uses the common calendar of Khorvaire called the Galifar Calendar which was developed during the reign of King Galifar II, called "the Dark," and places it's year 1 at the year of the founding of the Kingdom of Galifar. (Year of the Kingdom or YK) so all dates prior to that year are negative numbers and all dates after are positive. (The standard timeline given in official WotC books measures the dates in positive numbers from Year 1, but measure the dates in negative numbers from Campaign Start, so Year 1 is also Year -998.)
The Age of Dragons
- In the mythic past, the world was one and the Progenitor Dragons, the first and greatest of dragon-kind, ruled all. The three most powerful (Siberys, Eberron, and Khyber) discovered (or created) the Draconic Prophecy. Khyber and Siberys disagreed over the Prophecy and battled with one another. Khyber was victorious over Siberys, and sought to take control of the Prophecy, only to be attacked by Eberron. Eberron wrapped his coils about Khyber, trapping the evil wyrm.
In the end, Siberys' shattered body became the Dragon Above - the glowing ring that surrounds the world. Khyber, still trapped in Eberron's coils, became the Dragon Below and the source for all great evils. Eberron healed the World Between by becoming one with it. Siberys called forth the next generation of dragons, Eberron created all manner of other living things, and Khyber spat out the fiends.
The Age of Demons
Date: -10,000,000 YK
- Khyber's fiendish offspring overrun the surface world, creating a hellish environment where rakshasas and night hags rule supreme.
Date: -1,500,000 YK
- Dragons rediscover the Prophecy and rise from their primitive state to oppose their demonic overlords. Unable to defeat the demonic hordes of the Dragon Below alone, the dragons ally with the couatls.
- The common races, still in primitive states, hide from the godlike combatants and find a way to survive.
Date: -100,000 YK
- Recognizing their cause would otherwise be lost, the couatls sacrifice most of their number to bind the most powerful of the demon lords and the majority of the fiends back to Khyber. The couatls remain trapped for eternity with the fiends they bind. Victorious, the dragons retreat to Argonnessen to contemplate the Prophecy, ignoring the "lesser races."
The Age of Giants
Date: -80,000 YK
- The giants rise from the ruins of the Dragon-Fiend Wars to establish a civilization on the continent of Xen'drik. They enslave the primitive elves, which has the inadvertent effect of pulling the first of the common races out of their primitive state.
Date: -75,000 YK
Date: -60,000 YK
- Dragons make contact with the giant kingdoms and teach the giants arcane magic.
- The giants master the arcane arts, creating wonders unequaled even in the modern day. The elves - ignored by their giant masters - watch and learn.
Date: -40,000 YK
- The quori invade Xen'drik from the plane of Dal Quor, the Plane of Dreams. After 1,000 years of battle, the giants call upon the most powerful magics of the dragons to throw Dal Quor out of planar alignment, forever sealing that plane away from Eberron. The resulting backlash shakes Xen'drik to its core and plunges large chunks of the continent beneath the sea.
Date: -39,000 YK
- 1,000 years after the end of the Giant-Quori War, Xen'drik is still suffering from the magical backlash of disrupting Dal Quor's planar orbit. Horrible curses and plagues still sweep through the land, and the elves use the opportunity to rebel.
- A corps of elves - called the Phiarlan or "Spirit Keepers" - work as bards, scouts, and couriers during the elven rebellion against the giants.
- In a desperate attempt to regain control of their slaves and save their dying civilization, the giants turn again to the most powerful draconic magics. Before they can unleash such destruction a second time, the dragons attack Xen'drik and the giant civilization collapses.
- The Phiarlan spread the word of the elven prophet Aeren, gathering elves to flee Xen'drik for the sub-continent that would become known as Aerenal. The elves who chose to stay behind in Xen'drik go into hiding, becoming the drow.
The Age of Monsters
Date: -38,000 YK
- The giants revert to primitive monsters living in the ruins of their shattered civilization as the dragons return to their secluded continent and the elves settle Aerenal.
- The first of the goblinoid kingdoms, Dhakaan, rises in the area that will one day become Breland and Darguun.
Date: -29,000 YK
- Orc nations arise in western Khorvaire to compete with the goblinoid kingdoms.
- Aerenal elves spread across the sub-continent of Aerenal, creating clusters of city-states.
Date: -25,000 YK
- The Undying Court appears in Aerenal.
- First skirmish between the elves and the dragons, which sets a pattern of long periods of peace punctuated by short, devastating battles every few hundred years.
Date: -19,000 YK
- The goblinoids push the kechuala (lizardfolk) out of the Talenta Plains and into the Endworld Mountains. Many of the lizardfolk that survived the goblin armies die in the mountains. The small remaining fraction make their way into the jungle of what is now Q'barra.
Date: -15,000 YK
- The Dhakaani unite the goblinoid nations to create the greatest empire the goblins have ever known.
- The dragon Vvaraak, in response to a portion of The Prophecy she had been studying, begins teaching the orcs druidic magic. These orcs become the first Gatekeeper druids.
Date: -11,000 YK
Date: -9,000 YK
- Aerenal elves establish a colony in what is now present-day Valenar. Peaceful coexistence doesn't last, and the elves come into conflict with the Dhakaani. The elves abandon the colony when another clash with the dragons threatens Aerenal.
Date: -8,000 YK
- The daelkyr - a race of immensely powerful beings from Xoriat, the Plane of Madness - invade Eberron. They are eventually defeated by the Gatekeeper druids, who seal the portals to Xoriat and trap the remaining daelkyr below ground, but not before decimating the western reaches of Khorvaire.
Date: -4,000 YK
- Weakened by the Daelkyr War, the Dhakaani government collapses to internal power-struggles and civil strife. Goblinoid city-states and smaller nations endure, but lack the political and military cohesion of the earlier empire.
Date: -3,100 YK
- The greatpine Oalian (the future Great Druid of Eldeen Reaches) is awakened.
Date: -2,200 YK
- The Mark of Hospitality appears among halflings of the Talenta Plains.
- The Mark of Shadow and the Mark of Death appear among the elves of Aerenal. The dragons watch in awe and horror as the Prophecy begins to unfold among the “lesser” races.
Date: -2,100 YK
- Founding of Io'vakas in Argonnessen built by the "lesser races" that the dragons transplanted from their ancestral homes across Eberron.
Date: -2,000 YK
- Lhazaar leads humans from the continent of Sarlona to the eastern shores of Khorvaire. The humans land in the pre-Galifar Lhazaar Principalities, and have little or no contact with the fractious goblin states.
- The Mark of Healing appears among halflings of the Talenta Plains.
Date: -1,975 YK
- Founding of the city of Shaarat by Malleon the Reaver built on top of the ruins of the Dhakaani city of Duur'Shaarat.
Date: -1,800 YK
Date: -1,600 YK
- The Mark of Sentinel appears among humans of pre-Galifar Karrnath.
- Elves & dragons unite to destroy House Vol (which carries the Mark of Death), ending millennia of intermittent warfare between the two species.
- Lady Vol, Lich Queen of the Dead is created.
- House Phiarlan leaves Aerenal to relocate among the humans of Khorvaire.
Date: -1,500 YK
- The distinct settlements that will become the Five Nations are cut out of goblin-controlled central Khorvaire.
- The Mark of Making appears among humans of pre-Galifar Cyre.
- The Mark of Warding appears among the dwarves of the Mror Holds.
Date: -1,400 YK
- King Breggor of the nation of Wroat orders the city of Shaarat destroyed due to the descendants of Malleon refusing to bow to his authority.
Date: -1,390 YK
- The city of Sharn is built on top of the ruins of the city of Shaarat by King Breggor.
Date: -1,000 YK
- Karrn the Conqueror establishes the nation of Karrnath, defeats the remaining goblinoid settlements, and unsuccessfully attempts to conquer the other four human nations.
- The Mark of Storm appears among half-elves of pre-Galifar Thrane.
- The discovery of Houses Ghallanda, Jorasco, and Lyrandar by Karrnathi soldiers in the Talenta Plains.
Date: -900 YK
Date: -802 YK
Date: -800 YK
- The Mark of Handling appears among humans in the Eldeen Reaches.
Date: -500 YK
- Quori begin conquest of Sarlona which brings a second wave of humans to Khorvaire's eastern shores.
- The Mark of Detection appears among half-elves of pre-Galifar Breland.
- The dragonmarked houses launch the War of the Mark to end the threat of aberrant and mixed marks.
Date: -493 YK
- The War of the Mark comes to an end when Lord Tarkanan, the Lady of the Plague, and his other lieutenants - in a last great act of defiance - cause the destruction of the city of Sharn and the believed extinction of the aberrant mark.
- The Twelve is established.
Date: -302 YK
Date: -200 YK
- Io'vakas is destroyed by the dragons due to a small sect of yuan-ti who sought more power and the deepest mysteries of draconic magic for themselves.
- Arnaarlasha (the noble gold dragon great wyrm of the Warders) along with a dozen elder dragons shepherd a thousand survivors of Io'vakas to the slopes of Mount Erishnak where they create the city of Io'lokar, the City of Knowledge.
Date: -45 YK
Date: -41 YK
- The Border Wars begin, eventually drawing in all five human nations of central Khorvaire.
Date: -24 YK
- Galifar assumes rulership of Karrnath.
Date: -14 YK
- Galifar begins his campaign to unite the Five Nations.
Date: -7 YK
- Galifar makes a deal with the dragonmarked houses, offering them neutral status in exchange for support in his campaign.
Date: -2 YK
Date: 1 YK
- Galifar I and his five scions - Cyre, Karrn, Thrane, Aundair, and Brey - take control of the Five Nations and establish the Kingdom of Galifar.
Date: 15 YK
Date: 28 YK
- Galifar-Lhazaar War, a decade-long conflict, begins.
Date: 32 YK
- The Five Nations of Galifar adopt the names of King Galifar's children as their own.
- The city of Sharn is once again rebuilt on top of the old cities' ruins.
Date: 40 YK
- Galifar, now eighty-five winters old, steps down and passes rulership of the kingdom to his oldest remaining scion, Cyre.
Date: 53 YK
- Galifar I dies.
Date: 106 YK
- House Kundarak is recognized by the established dragonmarked houses.
Date: 299 YK
- The Church of the Silver Flame is born.
Date: 347 YK
- House Lyrandar takes possession of an island off the coast of Aundair to create Stormhome.
Date: 498 YK
- House Sivis discovers the Mark of Finding while exploring the Shadow Marches. House Tharashk is created shortly thereafter.
Date: 512 YK
- King Daroon orders the construction of the Starpeaks Observatory.
Date: 600 YK
- Clan Noldrun of the Mror Holds disappears.
- The Battle of Arnaarlasha's Fall begins a day after Arnaarlasha (gold dragon great wyrm of the Warders) dies. The battle only lasts 4 days as the city successfully defends itself from the Rogue dragons.
Date: 778 YK
- Medusas from Khyber take possession of Cazhaak Draal.
Date: 783 YK
- The first speaking stones developed by the Twelve.
Date: 789 YK
- House Sivis message stations begin operations.
Date: 797 YK
- Mordain the Fleshweaver is Excoriated from House Phiarlan for practicing the forbidden magical arts of the Daelkyr.
Date: 802 YK
- The Kingdom of Galifar, in cooperation with the dragonmarked houses, funds the upgrade of the trade city of Stormreach on the northern peninsula of Xen'drik.
Date: 811 YK
- First lightning rail connects Flamekeep and Fairhaven.
Date: 832 YK
- The Inquisition to wipe out lycanthropes (aka the Silver Purge) is launched by the Church of the Silver Flame. Over the course of the next 50 years, virtually all Lycanthropes on the continent are slain.
Date: 845 YK
- King Jarot begins a public works project to connect all of central Khorvaire via lightning rails.
- Publication of the Deviant Celestia.
Date: 873 YK
- Discovery of Blackroot (Mordain the Fleshweaver's tower in Droaam).
Date: 865 YK
- Lightning rail lines connect the Five Nations, Zilargo, the Mror Holds, and the Talenta Plains.
Date: 878 YK
- House Deneith begins to provide clients with goblinoid mercenaries from Darguun region.
Date: 890 YK
- City of Stormreach puts down the Omaren Revolt.
Date: 894 YK
- King Jarot, the last ruler of Galifar dies. Thalin, Kaius, and Wroann reject the succession of Mishann. Wrogar backs his sister's claim, and the Last War begins.
Date: 896 YK
- Order of the Emerald Claw established.
Date: 897 YK
- Desperate to save Karrnath from the ravages of the Last War, Kaius I of Karrnath pledges his kingdom to The Blood of Vol. For his trouble, Kaius I is turned into a vampire by the lich-goddess Vol.
Date: 910 YK
- Kaius II ascends to the throne of Karrnath after Kaius I disappears
Date: 914 YK
- The Mror Holds declares it's independence.
- Thalin of Thrane dies and the Church of the Silver Flame assumes control of the nation.
Date: 918 YK
- Unknown saboteurs destroy the Glass Tower of Sharn.
Date: 928 YK
- Duke Ven ir'Kesslan leads settlers from Cyre to forge the nation of Q'barra.
Date: 946 YK
- City of Stormreach is attacked by the Battalion of the Basalt Towers, but with the help of the Giants of Rusheme Stormreach wins the battle.
Date: 956 YK
- Southern annex of Cyre becomes the Elf Nation of Valenar.
Date: 958 YK
- The Eldeen Reaches declares itself an independent nation under the protection of the Wardens of the Wood and the guidance of the Great Druid Oalian.
Date: 961 YK
- Boranel becomes king of Breland.
Date: 962 YK
- Zilargo - always an independed protectorate of Breland - formally aligns with Breland.
Date: 965 YK
- House Cannith perfects the modern-era warforged, living constructs designed to fight the Last War.
Date: 969 YK
- Haruuc leads the hobgoblin rebellion against the nation of Cyre & Breland, and the nation of Darguun is born.
Date: 972 YK
- House Thuranni splits off from House Phiarlan.
Date: 976 YK
- Regent Moranna of Karrnath outlaws the Order of the Emerald Claw.
Date: 980 YK
- Queen Aurala's reign of Aundair begins.
Date: 986 YK
- A trio of hags known as the Daughters of Sora Kell invade western Breland with an army of trolls, ogres, and gnolls. Unable to confront both the monsters and fight its opponents in the Last war, King Boranel pulls settlers back and seals off the land west of the Graywall Mountains. The Daughters of Sora Kell declare the sovereignty of the nation of Droaam.
Date: 990 YK
- The first elemental airships go into service for House Lyrandar.
Date: 991 YK
- Kaius III's rule of Karrnath begins upon his 20th birthday.
Date: 993 YK
- Jaela Daran (age 6) assumes the power of the Keeper of the Silver Flame.
Date: 994 YK
- A magical blast of unprecedented power obliterates the nation of Cyre creating the Mournland.
Date: 996 YK
- The Treaty of Thronehold officially ends the Last War. The treaty officially recognizes the nations of Aundair, Breland, Thrane, Karrnath, the Talenta Plains, Zilargo, Q'barra, the Lhazaar Principalities, the Mror Holds, the Eldeen Reaches, Darguun, and Valenar.
- The treaty further commands House Cannith to destroy the creation forges (the devices used to create warforged). Remaining warforged are granted the rights of sentient beings.
- The mysterious appearance of Dolurrh's Dawn in Droaam.
Date: 997 YK
- Largely due to war refugees, the City of Stormreach expands.
Date: 998 YK
- The Present: Your Adventure Begins...