#### **The Primordial Age (Pre-Dalereckoning)**
- **Before -35,000 DR: Formation of The Abyss**
- The Abyss forms as part of the multiverse’s creation, emerging as a rift in the planar structure.
- It is theorized to have been born from the essence of chaos and evil that escaped the creation of other planes.
- **The Dawn War:**
- During the war between the gods and primordials, the Abyss becomes a refuge for chaotic primordial forces.
- **Tharizdun**, a primordial or dark deity, allegedly creates the Abyss by corrupting a shard of pure evil and casting it into the cosmos.
- The gods seal Tharizdun and prevent the Abyss from spreading further, though it continues to grow, layer by layer.
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#### **The Rise of Demons (-30,000 DR to -20,000 DR)**
- **-30,000 DR: Birth of the Demons**
- The chaotic energies of the Abyss give rise to the first demons, manifestations of pure chaos and evil.
- **Demogorgon**, **Orcus**, and other demon lords emerge, shaping their respective layers and consolidating power.
- **-25,000 DR: The Blood War Begins**
- The Abyss and its demons come into conflict with the devils of **Baator**, marking the start of the **Blood War**, an eternal battle between chaotic evil and lawful evil.
- The first battles rage on the Abyss’s upper layers, particularly the **Plain of Infinite Portals** (the first layer).
- **-20,000 DR: Demon Lords Ascend**
- Demon lords solidify their control over specific layers of the Abyss, becoming its rulers and generals in the Blood War.
- Alliances and betrayals between demon lords become common, shaping the plane’s chaotic hierarchy.
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#### **The Age of Mortal Influence (-10,000 DR to -1,000 DR)**
- **-10,000 DR: Mortal Summoning Begins**
- Mortals discover ways to summon demons, exploiting their destructive power in wars and magical experiments.
- Demon summoning leads to widespread corruption and chaos on the Material Plane.
- **-7,000 DR: Cults of Chaos Rise**
- Cults dedicated to demon lords emerge on Toril, spreading their worship through promises of power and destruction.
- Demogorgon, Graz’zt, and Orcus attract the largest followings, influencing mortal politics and conflicts.
- **-5,000 DR: Fall of the Giant Empires**
- Demons infiltrate the giant empires, sowing discord and corruption.
- Their influence accelerates the decline of these civilizations, ensuring chaos reigns.
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#### **The Age of Chaos (-1,000 DR to 1358 DR)**
- **-1,000 DR: The First Demon Invasions**
- Planar rifts to the Abyss appear on Toril, allowing hordes of demons to invade.
- Mortal heroes and divine intervention seal these rifts, but not before entire regions are devastated.
- **500 DR: Rise of the Demon Cults**
- Cults dedicated to Orcus and Graz’zt spread across the Sword Coast and the Heartlands.
- These cults establish strongholds, summoning demons to bolster their power.
- **714 DR: The Siege of Myth Drannor**
- Demons play a key role in the fall of Myth Drannor, summoned by necromancers and fiendish cultists.
- Many of the city’s artifacts and treasures fall into the hands of demon lords, strengthening their dominion.
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#### **The Time of Troubles and Abyssal Turmoil (1358 DR)**
- **1358 DR: The Time of Troubles**
- During the gods’ descent to Faerûn, several demon lords exploit the chaos to expand their influence on the Material Plane.
- Orcus temporarily seizes artifacts of immense power, though adventurers thwart his plans.
- Mortal summoners open new rifts to the Abyss, unleashing demonic incursions that devastate several regions.
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#### **The Spellplague and Abyssal Expansion (1385 DR to 1487 DR)**
- **1385 DR: The Spellplague**
- The collapse of the Weave destabilizes the Abyss, creating temporary portals across the planes.
- Demons flood into Toril, particularly in regions like Chult and the Underdark, causing widespread chaos.
- **1390 DR: Orcus’s Rise to Power**
- Orcus, wielding the **Wand of Orcus**, launches a campaign to dominate the Abyss, challenging Demogorgon and Graz’zt.
- Though his plans fail, the Abyss’s layers become even more fractured, with shifting alliances and territories.
- **1479 DR: Demon Invasions of Neverwinter**
- Demonic rifts open near Neverwinter, with cultists of Demogorgon attempting to summon their master.
- Adventurers close the rifts, though the region remains scarred by Abyssal corruption.
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#### **The Second Sundering and Modern Era (1484 DR to Present)**
- **1484–1487 DR: The Second Sundering**
- The **Tablets of Fate** are restored, rebalancing the planes and stabilizing the Abyss’s chaotic growth.
- Demon lords intensify their efforts to corrupt mortal realms, leading to a surge in demonic activity.
- **1492 DR: Baldur’s Gate 3 and Abyssal Influence**
- Cults of Demogorgon, Graz’zt, and Baphomet manipulate mortal factions, seeking to open permanent rifts to the Abyss.
- Adventurers thwart their schemes, though the influence of the Abyss continues to grow.
- **Present Day:**
- The Abyss remains a realm of endless chaos and destruction, with demon lords vying for power and mortals foolishly seeking to exploit its energies.
- Adventurers frequently confront Abyssal incursions, recover corrupted artifacts, or close planar rifts to prevent widespread devastation.
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### **Themes of The Abyss’ Timeline**
1. **Chaos and Destruction:**
- The Abyss is the ultimate force of unbridled chaos, constantly seeking to disrupt and destroy the multiverse’s order.
2. **The Blood War:**
- The eternal conflict between demons and devils defines much of the Abyss’s history and its relationship with other planes.
3. **Mortal Corruption:**
- The Abyss thrives on the greed, ambition, and hubris of mortals, spreading its influence through cults and summoning rituals.
4. **Adventuring Opportunities:**
- The Abyss offers challenges such as battling demon lords, navigating its treacherous layers, and sealing rifts to prevent invasions.
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