The Imperial Library

1E 1

The kingdom of Valenwood is established by king Eplear of the Camoran dynasty. This is the first written record in the timeline of the nords and functions as the starting point of the First Era. The kingdom becomes a buffer between the Ayleid city-state of White-Gold Tower in central Tamriel and the influence of the stronger Altmeri kingdom of Alinor in the Summerset Isles. Over time, the Ayleid territories grow increasingly independent and White-Gold Tower eventually rises as a new autonomous state.

1E 10

Torug gro-Igron unites the orcish tribes of the Wrothgarian Mountains and establishes a powerful city-state called Orsinium.
Source: Pocket Guide to the Empire (3rd Edition): Orsinium.

1E 20

The oldest written record of the existence of the isle of Artaeum. It tells the tale of the Breton sage and author Voernet, traveling to Artaeum to meet Iachesis, the Ritemaster of the Psijic Order.
Source: Fragment: On Artaeum, Guide to the Psijic Order.

1E 68

The last ships from Atmora arrive in Tamriel. After this event, Atmora is reported uninhabitable.
Source: Pocket Guide to the Empire (3rd Edition): Skyrim.

1E 139

A company of men, led by Skorm Snow-Strider, pursue a group of Falmer to the eastern banks of Lake Honnith. Instead of the Falmer, they find a temple of Dragon Cultists. They lay siege to the stronghold.
Source: Skorm Snow-Strider's Journal

1E 140

Skorm Snow-Strider's group manage to break down the walls of the monastery with the help of a young voice master, but find that the inhabitants have committed suicide.
Source: Skorm Snow-Strider's Journal

1E 143

King Harald, the thirteenth of Ysgramor's legendary line, unites the northern regions of Tamriel and forms the kingdom of Skyrim.

1E 221

King Harald dies at the age of 108. His son Hjalmer takes the throne.
Source: Frontier, Conquest, and Accommodation: A Social History of Cyrodiil, University of Gwylim Press, 3E 344

1E 222

Hjalmer dies and Vrage the Gifted becomes the next king.

1E 240

Under Vrage, Skyrim expands its borders dramatically. To the east, the Nords conquer large areas in what they then call Dwemereth, the land of the Dwemer and nomadic Chimer. To the west, Skyrim pushes the Direnni, a local clan of Altmer, out of most the area now known as High Rock. Their arrival severely shakes the power balance between the native nedic peoples and the elves.
Source: Pocket Guide to the Empire (1st Edition): Skyrim, Frontier, Conquest, and Accommodation: A Social History of Cyrodiil, History of Daggerfall.

1E 242

Inspired by the 'slave queen' Alessia, the enslaved nedic humans in Cyrod starts a violent uprising against their cruel Ayleid overlords. The nedes are soon supported by Pelinal Whitestrake, an inscrutable and nearly invincible warrior with an undying hatred for the elves, who single-handedly decimates the Ayleid armies. With Pelinal on their side, the human rebellion succesfully topples stronghold after stronghold, each time increasing their number with liberated slaves.

The humans are also joined by the armies of Skyrim, lead by the winged bull Morihaus. The combined armies form an unstoppable force that quickly conquers all of the peripheral city-states of Cyrod. All sights are now set on White-Gold Tower, the last and greatest stronghold of the Ayleids.
Source: Shezarr and the Divines, The Song of Pelinal

1E 243

The armies of the rebellion lay siege on White-Gold Tower. Pelinal grows impatient with the slow preparations for the final attack and heads for the city alone. After killing many soldiers, Pelinal calls out Umaril the Unfeathered, the king of White-Gold Tower and slays him in single combat. The remaining Ayleid kings trap and by secret methods kill Pelinal before attempting to flee the city. Soon after, the armies of Alessia and Morihaus sound the attack and easily raze the remaining defenses. White-Gold Tower is conquered and the Ayleid empire annihilated. Alessia with Morihaus as her consort becomes the first empress of the empire of men.

Source: The Song of Pelinal, The Adabal-a

1E 243

The new kingdom of men prospers. In an effort to please all of her subjects, Alessia designs the religion of the 'Eight Divines' as an intricate fusion of the nordic gods and the Aldmeri pantheon that had her fellow nedes had adopted over the ages. Over the next centuries, the heartland develops a strong national identity and extends its territory by annexing the nearby kingdom of Colovia.

Source: Shezarr and the Divines, The Nine Divines, The Ten Commands Of The Nine Divines.

1E 246

The city-state of Daggerfall of High Rock is established by the Nords.
Source: History of Daggerfall.

1E 266

Death of Alessia. Various accounts hold that either Shezzar, the 'missing' sibling god of the Eight Divines, Akatosh or both appear at her deathbed to assist the dying empress. Alessia is either given the Amulet of Kings or is transformed into its first gem by the gods.

The Elder Council elects Belharza the Man-Bull as the second Emperor of Cyrodiil.

1E 340

Valenwood starts a trade treaty with the Alessian empire.
Source: Pocket Guide to the Empire (3rd Edition): Valenwood.

1E 355

Clan Direnni, now the only Aldmeri faction to still rule in human lands, again rises in power through political maneuvering and questionable machinations. The clan slowly starts re-capturing the land from Skyrim. 

c. 1E 361

The Alessian Order, a religious order following the teachings of the Imga prophet Maruhk, gains control over the Cyrodiil empire. Maruhk reportedly receives painful visions of the Slave Queen Alessia. The Order calls for a worldwide overthrow of Aldmeri rule and suppression of the elven elements of the Eight Divines, replacing them with an increasingly abstract and unknowable single god. The beliefs of the Order are quickly enforced throughout the Cyrodiilic heartland and northern Tamriel.

Source: Pocket Guide to The Empire (1st Edition): Cyrodiil, History of Daggerfall.

1E 369

The Wild Hunt (a bestial horde of monstrously transformed Bosmer) kills King Borgas of Winterhold, the ruler of Skyrim and last of Ysgramor's line. The Moot - a council with the duty of choosing the next king from qualified members of the royal family - fails to appoint the obvious and capable Jarl Hanse of Winterhold, which starts the disastrous War of Succession.

Source: Pocket Guide to The Empire (1st Edition): Skyrim, History of Daggerfall.

1E 376

In the continent of Yokuda, the power of the emperors is broken around the year 2012 in the Yoku time reckoning. The emperors remain in place as ceremonial figures, but find their de facto power extremely limited. The continent is plunged into three centuries of virtually continuous civil war between various local factions.

Source: Redguards, Their History and Their Heroes.

1E 393

Devils issuing from the ancient Ayleid temple of Malada plague the Cyrod countryside. The Alessian Order attacks the complex and destroys the demons.

Source: The Cleansing of the Fane.

1E 416

In Veloth (current-day Morrowind), Indoril Nerevar has rallied the warring clans and Great Houses of the Chimer and has forged relations with Dumac of the Dwemer. The two leaders unite their formerly opposed peoples against the occupying forces of Skyrim. In 1E 416, the Nords are driven out of Veloth.

After the war, Dumac and Nerevar resolve to make peace. The new Resdayn is established as a united Chimeri and Dwemeri kingdom with Nerevar and Dumac as its joint leaders. Peace between the Chimer and Dwemer brings an unprecedented prosperity and flowering of both cultures.

Source: Nerevar at Red Mountain, The Battle of Red Mountain, and the Rise and Fall of the Tribunal, Pocket Guide to The Empire (1st Edition): Morrowind.

1E 420

Rourken, a clan of the Dwemer, refuses to accept peace with the Chimer. They choose self-exile and leave Resdayn forever. The Rourken eventually eventually arrive in the region now known as Hammerfell and build their new kingdom, Volenfell. According to legend, the leader of the Rourken threw his hammer, Volendrung, across Tamriel, promising to lead his clansmer to wherever it should fall. This mythic image has been depicted on the walls of several ruins in Hammerfell: a mass exodus of golden-clad Dwemer, trudging through the Cyrodiilic forests, Volendrung a falling star in the nightsky before them, urging them on.

Source: Pocket Guide to The Empire (1st Edition): Hammerfell, Pocket Guide to The Empire (3rd Edition): Hammerfell.

In Skyrim, the War of Succession is finally concluded with the Pact of Chieftains. It is agreed that the Moot will henceforth only assemble when a king dies without direct heirs. Over several decades of strife, the empire of the Nords has lost its territories in Veloth, High Rock and Cyrodiil.

Source: Pocket Guide to The Empire (1st Edition): Skyrim.

1E 448

Rislav Larich is born to the king Mhorus of Skingrad.
Source: Rislav the Righteous.

1E 461

The coronation of emperor Gorieus at White-Gold Tower. Representatives of many of Tamriel's nations attend the ceremony.
Source: Rislav the Righteous.

c. 1E 470

First mention of the powerful Altmer artifact known as the Flask of Lillandril.
Source: Elven Artifacts, The Storyline of Redguard.

1E 472

The kingdom of Skingrad and Kvatch form an alliance after years of territory dispute. Rislav Larich is married to Belene, the daughter of Justinius of Kvatch.
Source: Rislav the Righteous.

c. 1E 477

Clan Direnni again controls High Rock and holds parts of Skyrim and the area later to be known as Hammerfell.

c. 1E 478-479

Conflict between Skyrim and the Alessians. Emperor Gorieus defeats Kjoric the White of Skyrim on the field of battle. The chieftain of Skyrim perishes and Hoag is elected as his successor.

A plague kills Mhorus and the rest of the local royal family in Skingrad. Having survived the plague in Nibenay, Mhorus' son Dorald returns to Skingrad to claim the throne and immediately cedes the region to the Alessian empire. Offended, Rislav rallies the army of Kvatch and defeats his brother in Skingrad, becoming the king of Skingrad. Gorieus finds himself thwarted in his attempts to gain a foothold in Colovia and invades the region. The united forces of Kvatch and Skingrad miraculously manage to defeat the Alessian army.

Inspired by the success of the rebellion, other local rulers in Colovia question the rule of the Alessians and begin to form a cluster of indepedent regions known as the Colovian Estates. This early division into a headstrong, indepedent west and a refined, colorful east will in many ways continue to tipify Cyrodiil throughout its history.

Other regions that reluctantly underwent strong Alessian influence, such as Skyrim and the Direnni holdings, become restless as well. Ryain Direnni outlaws the Alessian doctrines and harasses the border with Cyrodiil.

Source: Rislav the Righteous, Pocket Guide to The Empire (1st Edition): Cyrodiil

1E 482

The allied forces of the Direnni (led by Aiden Direnni) and Skyrim (led by Hoag Merkiller) defeat the Alessian army in the Battle of Glenumbria Moors.

The battle is costly for all involved parties. The power of Cyrodiil and the Alessians is greatly diminished in the following decades. The Direnni emerge victorious, but their severe losses create a power vacuum that the emerging human nobility in their lands is quick to fill.

Hoag Merkiller perishes during the battle and the legendary Wulfharth of Atmora (also known as Ysmir) is elected as his successor. He immediately orders a forceful reinstatement of the traditional Nordic pantheon. Alessian temples are destroyed and their priests executed.

Source: The Final Lesson, The Five Songs of King Wulfharth, Pocket Guide to The Empire (1st Edition): High Rock, History of Daggerfall, Rislav the Righteous.

1E 498

Within two decades after the Alessian defeat, the Direnni have lost most of their power to the human inhabitants of Greater Bretony. The once-mighty clan now only holds the island of Balfiera in Illiac Bay.

1E 609

King Thagore of Daggerfall defeats the army of Glenpoint and Daggerfall rises to become the most powerful kingdom in southern High Rock.
Source: History of Daggerfall.

 In Yokuda, Mansel Sesnit becomes the Elden Yokeda or a military dictator. He manages to control most of the continent for eight years.

Source: Redguards, History and Heroess

1E 617

Mansel Sesnit is assassinated. Randic Torn continues the work of unifying Yokuda.
Source: Redguards, Their History and Their Heroes.

c. 1E 660

Skyrim forces reputedly defeat the orcish god Mauloch (Malacath) in the battle of Dragon Wall. Mauloch flees east and fills the sky with his hatred, an account that can clearly be related to Red Mountain's eruption around these years.
Source: Varieties of Faith in the Empire.

1E 668-1E 700

The peace between Resdayn's two peoples disintegrates as Vory Dagoth, the leader of the Chimer House of Dagoth brings news about a grand Dwemeri project. The tonal architects of the Dwemer with Kagrenac as their chief, have uncovered the Heart of Lorkhan and are planning to use the dead god's heart as the centerpiece of Numidium, a constructed god that would allow the Dwemer people as a whole to transcend mortal existence. The Chimer strongly disapprove of the plan, considering it extremely blasphemous, while the Dwemer feel their actions should not be judged by the Chimer.

Repeated negotations between Indoril Nerevar and Dumac fail to restore trust. The two former friends quarrel bitterly and Nerevar's advisors call for war. In the cataclysmic Battle of Red Mountain, the Chimer attack the Dwemer strongholds on the flanks of the eponymous volcano. Nerevar, Dagoth, and a band of companions confront and kill Dumac in his citadel.

During the battle, the Dwemer people mysteriously vanish as a whole, including their exiled cousins of Volenfell, presumably as a result of Kagrenac's premature attempt to use his tools on the Heart. It remains unclear whether the disappearance of the Dwemer was a disastrous failure or a success.

Kagrenac's tools are recovered by the Chimer. Nerevar leaves Dagoth to guard the tools in the heart chamber, while he seeks the counsel of the Tribunal, his trusted queen and generals: Almalexia, Vivec and Sotha Sil. Despite Nerevar's sincere reservations, the three persuade him to preserve and study the tools. All swear an oath upon Azura never to use the tools in the manner the Dwemer had intended. Upon returning to the Heart Chamber, they find Dagoth irrationally reluctant to give up the tools and are forced to take them by force. Dagoth and his retinue manage to escape and are not heard of for many years.

At some point Indoril Nerevar dies, though the circumstances of his death are highly unclear. The official stance of the later Tribunal Temple is that Nerevar succumbed to grave wounds he sustained in his fight with Dumac. Another account, ascribed to Nerevar's lieutenant Alandro Sul and popular primarily among the nomadic ashlanders, holds that Nerevar's three trusted advisors betrayed and murdered their friend, husband and leader, intending to break their oath.

Some time after the battle, Sotha Sil manages to divine the workings of the tools. The Triunes travel to Red Mountain and make themselves gods. Azura turns the skin of all Chimer gray and their eyes fire-red as a permanent sign of their impunity. The Chimer are henceforth known as the Dunmer or 'Dark Elves'. Furthermore, Azura prophesizes that Nerevar will one day return to end the stolen immortality of the Tribunal. Despite these events, the Tribunal take up their roles as benevolent god-kings and guide their people into an era of unprecedented prosperity.

Source: The Battle of Red Mountain, and the Rise and Fall of the Tribunal, Nerevar at Red Mountain, Kagrenac's Tools, The War of the First Council, The Real Nerevar, Nerevar Moon-and-Star, The Five Songs of King Wulfharth.

After the War of the First Council, Red Mountain erupts. Numerous peoples across Tamriel remember the event: to the Nords it was "The Year of Winter in Summer", to the Khajiit, "Sun's Death".

Source: Pocket Guide to The Empire (1st Edition): Morrowind.

1E 720

Frandar Hunding, a major Yokudan hero figure, is born in the year 2356 of the old Yoku timeline.

Source: Redguards, Their History and Their Heroes.

1E 737

Randic Torn, the Yoku emperor, dies. The entire Yoku empire is plunged into chaos and the resulting civil war makes the unrests of the previous three centuries pale in comparison.

Source: Redguards, Their History and Their Heroes.

1E 760

Divad Hunding, the only son of Frandar Hunding is born.
Source: Divad The Singer.

Note: In the Yoku time reckoning, the year is 2396. This year is often used to synchronize the Yoku timeline with the Tamrielic one. The accuracy of this method is debated, but the margin of error is likely to be small.

1E 780

After years of combat, Frandar Hunding believes he has achieved the peak of his power and retires to live as a hermit. He writes the Book of Circles, a philosophical treatise on the martial arts.

1E 792

The Hiradirge (a group of Yoku sword-saints) are defeated in Yokuda. For reasons not clearly understood, this event triggers the destruction of the entire continent. The surviving Yoku are forced to flee.
Source: Pocket Guide to the Empire (3rd Edition): Hammerfell.

c.1E 800

Wayrest is established as a tiny village of traders and fishermen.
Source: Wayrest, Jewel of the Bay.

c.1E 808

The Yoku reach the shores of Tamriel after fleeing Yokuda, settling the island of Herne while a small group sails on to the mainland. The first Yoku wash over what would later be known as Hammerfell as a 'warrior wave', or 'Ra Gada' in the Yoku language. (This term laters comes to be understood as 'Redguard', the Imperial denomination for all inhabitants of Hammerfell.) The Ra Gada slaughter beastfolk and local nedic tribes alike to make way for their remnant population at Herne.

Frandar Hunding is among the first to explore the new land but his party is ambushed by orcs and Hunding perishes. Divad, Frandar's son, strikes back fiercely and is henceforth recognized by the Redguards as HoonDing, God of Make-Way.

The Yoku claim eventually their new homeland. The twofold invasion of Hammerfell lays the foundation for the later division of the nation's population into two broad factions. The Na-Totambu, Yokuda's traditional ruling class later grow into the Crowns, while the vanguard of the Ra Gada become the Forebears.

Source: Pocket Guide to The Empire (1st Edition): Hammerfell, Pocket Guide to The Empire (1st Edition): The Wild Regions, The Origin of Cyrus, A Compilation of Redguard History, Notes For Redguard History, Divad the Singer, Redguards, History and Heroes, The Memory Stone.

Gaiden Shinji of the Redguard Order of Diagna establishes the tradition of honorable battle in Arena in the west and eventually accepted by the people of the heartland. The construction of Arena in the Imperial City is started. Unfortunately, he falls during the Siege of Orsinium and never see the completed Arena. Gaiden Shinji who is also famous of his quote "The best techniques are passed on by the survivors" is honored as the first Blademaster of the Cyrodiil Arena.

1E 948

The mighty Orsinium becomes a great threat to the neighboring kingdoms. King Joile of Daggerfall sends a letter to Gaiden Shinji of the Redguard Order of Diagna, proposing a joint attack on Orsinium. The alliance is established, and this effectively reduces the feud between the Redguard and Breton, as both races focus on a single common foe, the Orsinium.

1E 950-1E 980

The allied forces of Daggerfall, Sentinel and the Order of Diagna launches attack on Orsinium. The Orcish kingdom of Orsinium proves too powerful to defeat. The "Siege of Orsinium" takes a long 30 years, consuming great warriors and heroes. Gaiden Shinji among the other heroes is killed in this war. To this day, the Orcs are still renowned for their battle prowess.
Source: The Pig Children.

1E 973

Makela Leki's memory stone is found in the Bankorai Pass of the Wrothgarian Mountains. The stone records her last battle, when she guards the Bankorai Pass from the army of King Joile of Daggerfall, their own ally in the Siege of Orsinium.
Source: The Memory Stone.

1E 983

With opening of Bjoulsae River, open trade between provinces flourishes. Great social and technological boosts, including writing, ensue.

1E 989

Wayrest in High Rock grows from a small village to a major city.

1E 1029

Empress Herta of Cyrodiil strengthens the Colovian West and expands the border of the Cyrodiil Empire to High Rock. She also runs a good diplomacy with the Nordic kingdom of Skyrim, the relationship between the two human kingdoms improves a bit.

1E 1033

Empress Hestra launches a war against the pirates in Topal Bay.
Source: Pocket Guide to the Empire (3rd Edition): Cyrodiil.

1E 1100

Wayrest becomes a city-state. The downfall of the Orsinium kingdom brings a good fortune to the small village of Wayrest. In short time the small village turns to an independent kingdom; a major trade city on the Bjoulsae River. Farangel of the Gardner Dynasty is the first king of Wayrest.
Source: Wayrest, Jewel of the Bay.

1E 1200-1E 2208

The Maruhkati Selective, a fanatical sect of the Alesian Order, is frustrated that the aspects of the ancient Aldmeri god, Auriel exists within the Supreme Spirit of the Eight Divines, Akatosh. The secret masters of the Maruhkati Selective channel the Aurbis to mythically remove those aspects. The tower or staff appears, and they dance on it until it writhed and trembled and spoke its protonymic. The tower splits into eight pieces and the Time (Dragon) break. Non-linearity of the Dawn Era returns, thus it is known as the Middle Dawn. Tamriel sleeps through the disaster for 'one thousand and eight years', until the pieces of the tower came to rest on the mortal plane. This Dragon Break event is recorded in the first Tamrielic Encyclopedia, but Fal Droon in his work The Dragon Break Reexamined, states that the Dragon Break is invented in the late 3rd era, based on a scholarly error, fueled by obsession with eschatology and Numidiumism, and perpetuated by scholarly inertia.

Source: Where Where were you when the Dragon Broke?, The Dragon Break Reexamined.

1E 1301

The Sack of Skywatch in Summerset Isle by the Sload from the coral kingdom of Thras.
Source: Pocket Guide to the Empire (3rd Edition): Summerset.

1E 1427

The Battle of Duncreigh Bridge in Sensford. A memorial High Rock local battle between (now known as) Anticlere and Sensford.
Source: Pocket Guide to The Empire (1st Edition): High Rock.

1E 2200

The Thrassian Plague destroys over half of the population of Tamriel. The plague is released by the Sload from the coral kingdom of Thras. Nobility from Daggerfall, Sentinel, and Wayrest escape to the Isle of Balfiera.
Source: Pocket Guide to The Empire (1st Edition): The Wild Regions.

Bendu Olo, the Colovian king of Anvil, sets off to Thras with his powerful Navy, destroying the Sload (though not completely). Warlock Syrabane plays a major role in the battle. Through judicious use of his magical ring, Syrabane saves many from the scourge of the Thrassian Plague.

Following this event, the control of Cyrodiil slowly changes to the west from the eastern Alessian rule, resulting in the War of Righteousness that later ended Alessian rule.

Source: Pocket Guide to The Empire (1st Edition): Cyrodiil, Varieties of Faith in the Empire

1E 2260

Thrassian Plague nearly wipes out Khajiit race. Of 16 tribes only 2 remains: Pellitine and Anequina.
Source: Pocket Guide to the Empire (3rd Edition): Elsweyr.

1E 2321-1E 2331

War of Righteousness, a civil war starts in Cyrodiil. The power of the priests of Alessian Order grows dramatically and they eventually turn among themselves. The western Colovian rises against the eastern Nibenese. Eventually the order that almost ruled the whole Tamriel is undone in this war, and the heartland empire is fractured.
Source: Pocket Guide to the Empire (1st Edition): Cyrodiil, The Cleansing of the Fane.

1E 2702

The entire population of Wayrest city is forced to move into the walled estate of the Gardners as protection against the pirates, Akaviri raiders, and Thrassian plague.
Source: Wayrest, Jewel of the Bay.

1E 2703

Reman I of Cyrodiil rallies the Nibenay Valley's army to join the Colovian Estate's army and manages to destroy the Tsaesci of Akavir at Pale Pass of Skyrim. Reman I accepts the surrendered Akaviri raiders to strengthen the Imperial army against the Aldmer. This event marks the birth of the Second Empire of Men.
Source: Pocket Guide to The Empire (1st Edition): Cyrodiil.

Circa 1E 2703

The city of Chorrol is established by its first Count, Kantus Jeril. The County is rewarded to him for his heroism in Pale Pass by Reman I.

1E 2714

Valenwood falls to the Cyrodiilic Empire.
Source: Pocket Guide to the Empire (3rd Edition): Valenwood

1E 2762

Reman I of Cyrodiil dies.

1E 2794

Reman II is born.

1E 2801

Emperor Kastav orders the Dragonguard of Sky Haven Temple to demand leveys ("hostage") from the Jarls of Markarth and Hroldan.
Source: Annals of the Dragonguard

1E 2804

Outbreak of the Winterhold Rebellion, the Dragonguard violate orders to supress it. Sky Haven Temple is cut off from the supply lines by order of the Emperor, but manages to make arrangements with the Reachmen.
Source: Annals of the Dragonguard

1E 2805

Sky Haven Temple is besieged after Kalien, a Blade but not a member of the Dragonguard, sacks the city of Winterhold.
Source: Annals of the Dragonguard

1E 2806

Reman II ascends to the throne according to Annals of the Dragonguard. Reman's tomb in TESIV:Oblivion gives a later date (see below). 
Source: Annals of the Dragonguard

1E 2811

The Battle of Argonia, the last Argonian army is defeated by Cyrodiil army.
Source: Pocket Guide to the Empire (3rd Edition): Argonia

1E 2812

Reman II is crowned Emperor. This date, found on Reman's tomb in TESIV: Oblivion, comes later than the date given in Annals of the Dragonguard (see above). 

Black Marsh is incorporated into the Cyrodiilic Empire.
Source: Pocket Guide to the Empire (3rd Edition): Argonia

Construction begins on Alduin's Wall in Sky Haven Temple. Craftsmen from all over Tamriel are being overseen by the Dragonguard's master.
Source: Annals of the Dragonguard

1E 2813

Cyrodiilic becomes the language of all legal documents, replacing High Elven. Cyrodiilic is the ancestor of the modern Tamrielic language.

1E 2815

The Grandmaster of the Blades visits Sky Haven Temple to check on the progress of Alduin's Wall, which is only half finished.
Source: Annals of the Dragonguard

1E 2818

Alduin's Wall is completed and dedicated by Emperor Reman II. It is considered one of the finest examples of late 2nd era Akaviri sculpture.
Source: Annals of the Dragonguard

1E 2837

The entire Black Marsh swamp land is conquered by the Imperial, officially forming the Province of Black Marsh. Most of the time, the Elves (Aldmer) call this area Argonia, thus the inhabitant is called Argonian.
Source: Pocket Guide to The Empire (1st Edition): The Wild Regions.

Circa 1E 2840

The Cyrodiil Empire launches invasion to Morrowind, the last region on Tamriel that is not under the rule of the Reman Dynasty. This is the start of the infamous Four Score War, a war that lasted for about 80 years.

1E 2851

Reman II of Cyrodiil dies.

1E 2871

The dragon Krahjotdaan is killed by the Dragonguard in the southern Jerall Mountains.

Source: Atlas of Dragons

1E 2877

Reman III is crowned as the Emperor of Cyrodiilic Empire.

1E 2920

The Cyrodiil Empire destroys the defender of Ald Marak, forcing Morrowind to surrender. Vivec negotiates with the heir of the Empire, Prince Juilek and reaches an agreement about the terms of surrender and the relationship between Morrowind and the Empire.

However, Prince Juilek is assassinated later this year and followed by the assassination of Reman III. The Reman Dynasty is destroyed. The reign falls to the Akaviri Potentate Versidue-Shaie. The Potentate declares the end of the First Era, and the beginning of the Second Era, the Era that is also known as the Interregnum.

"...'The Cyrodiil line is dead,' announced the Potentate to the crowd gathered beneath the Speaker's Balcony of the Imperial Palace. 'But the Empire lives. The distant relatives of our beloved Emperor have been judged unworthy of the throne by the trusted nobility who advised his Imperial Majesty throughout his long and illustrious reign. It has been decided that as an impartial and faithful friend of Reman III, I will have the responsibility of continuing on in his name.'..."
- from Carlovac Townway's 2920, THE LAST YEAR OF THE FIRST ERA

The Daedric Prince Mehrunes Dagon is summoned by disgruntled witch over the massacre of the coven and the death of her family. The Prince of Destruction is pleaded to destroy the Mournhold, the capital of Morrowind along with its Duke, Indoril Brindisi Dorom. Almalexia and Sotha Sil arrive too late on the scene, Mournhold was already destroyed by Mehrunes Dagon. However the two living gods, managed to banish Mehrunes Dagon back to Oblivion, an epic battle that is now memorialized in the Mournhold Plaza Brindisi Dorom.

Source: 2920, The Last Year of the First Era.