---
#### **The Primordial Age (Pre-Dalereckoning)**
- **Before -35,000 DR: Formation of Acheron**
- Acheron is created during the multiverse's formation as a place of perfect order where war is constant but rules are always followed.
- Initially a neutral plane, Acheron begins to attract deities, spirits, and mortals who value structure and conquest.
- **The Dawn War:**
- During the war between the **primordials** and the gods, Acheron serves as a battleground.
- Deities aligned with law, such as **Bane** and **Maglubiyet**, use Acheron as a staging ground for their armies.
- The primordial remnants left scars across Acheron’s iron cubes, with some regions becoming dormant and devoid of war.
---
#### **The Rise of Militaristic Deities (-30,000 DR to -10,000 DR)**
- **-30,000 DR: The Arrival of Maglubiyet**
- **Maglubiyet**, the god of goblinoids, claims parts of Acheron for his domain.
- He creates vast goblinoid armies that wage eternal war across the plane.
- The first goblinoid warlords emerge, each controlling smaller iron cubes as strategic strongholds.
- **-25,000 DR: Expansion of Orcish Presence**
- **Gruumsh**, the god of orcs, uses Acheron to train and deploy his divine forces.
- The goblinoid and orcish deities establish Acheron as their primary battlefield, perpetuating their endless rivalry.
- **-20,000 DR: Creation of the War Engines**
- Early mortals and planar engineers design massive war machines powered by Acheron’s energy.
- These engines, abandoned or destroyed, litter the cubes, creating hazards and relics for future armies.
---
#### **The Age of Mortal Interaction (-10,000 DR to -1,000 DR)**
- **-10,000 DR: The Crown Wars**
- During the **Crown Wars** on Toril, certain elven factions summon forces from Acheron to aid in their conflicts.
- These summoned soldiers often return to Acheron after their tasks, bringing knowledge of mortal magic and tactics.
- **-5,000 DR: Involvement of Bane**
- The god **Bane**, representing tyranny and order, stakes his claim on Acheron, establishing fortresses where his armies train for domination.
- Bane’s influence attracts mortal warlords and planar beings who seek power through militaristic means.
- **-2,000 DR: Rise of the Goblinoid Kingdoms**
- Goblinoid kingdoms in the Material Plane align themselves with Maglubiyet’s forces in Acheron, forging planar alliances.
- These alliances fuel large-scale invasions on the Material Plane, with goblinoid warlords drawing upon Acheron’s armies.
---
#### **The Time of Empires (-1,000 DR to 1358 DR)**
- **-1,000 DR: The Rise of Mortal Generals**
- Mortal generals and rulers begin to use planar magic to access Acheron, summoning its soldiers for their conquests.
- These generals often fail to control the soldiers, who return to Acheron with tales of mortal arrogance.
- **500 DR: The Fortresses of Iron**
- Acheron’s iron cubes are transformed into sprawling fortresses by planar warlords.
- Each fortress becomes a hub of strategy, its commander vying for dominance over nearby cubes.
- **714 DR: The Fall of Myth Drannor**
- During the siege of Myth Drannor, portals to Acheron are briefly opened, unleashing battalions of goblinoids and war spirits.
- The summoned forces return to Acheron after the fall, bringing stolen artifacts and magical knowledge.
---
#### **The Time of Troubles and Acheron’s Influence (1358 DR)**
- **1358 DR: The Time of Troubles**
- During the chaos of the gods walking Faerûn, Maglubiyet, Gruumsh, and Bane temporarily lose control over their forces in Acheron.
- Warlords and planar beings rise in rebellion, seeking to carve their own empires out of the plane’s chaos.
- The balance is restored when the gods regain their divine powers, crushing the rebellions.
---
#### **The Spellplague and Acheron’s Disruptions (1385 DR to 1487 DR)**
- **1385 DR: The Spellplague**
- The collapse of the Weave destabilizes portals to and from Acheron, isolating some of its warlords from outside forces.
- Mortals summoning armies from Acheron face unpredictable results, with soldiers often appearing fragmented or incorporeal.
- **1390 DR: Bane’s Ascendancy**
- Bane consolidates his influence over portions of Acheron, using it to train his mortal followers and expand his tyranny on the Material Plane.
- His planar fortresses become rallying points for his legions of tyranny.
- **1479 DR: Maglubiyet’s Reclamation**
- Maglubiyet wages a campaign against rebellious goblinoid warlords in Acheron, reasserting his dominance.
- The defeated warlords’ souls are reforged into weapons, fueling future battles.
---
#### **The Second Sundering and Modern Era (1484 DR to Present)**
- **1484–1487 DR: The Second Sundering**
- The restoration of the **Tablets of Fate** stabilizes the planar structure of Acheron.
- Maglubiyet, Gruumsh, and Bane strengthen their footholds, solidifying their positions as key players in the plane’s conflicts.
- Mortal incursions into Acheron increase as adventurers seek to exploit the plane’s resources and knowledge.
- **1492 DR: Baldur’s Gate 3 and Planar Wars**
- Cults of Bane and Maglubiyet work together to summon Acheron’s war spirits to the Material Plane.
- Adventurers thwart these plans, preserving the balance between Acheron and other planes.
- **Present Day:**
- Acheron remains a realm of ceaseless war, its iron cubes constantly colliding and resounding with the echoes of battle.
- Adventurers explore the plane to recover ancient war engines, form alliances with planar generals, or oppose the tyrannical gods who dominate its conflicts.
---
### **Themes of Acheron’s Timeline**
1. **Eternal War:**
- Acheron’s history is defined by constant conflict, both among its inhabitants and in its interactions with other planes.
2. **Lawful Structure and Tyranny:**
- The plane reflects the extremes of law and order, where hierarchy is absolute, and war is the only means of resolving disputes.
3. **Interplanar Influence:**
- Acheron’s armies and warlords have repeatedly shaped events on the Material Plane, whether through direct invasions or alliances with mortal powers.
4. **Adventuring Opportunities:**
- Acheron offers adventurers the chance to battle legendary warlords, recover powerful relics, and navigate the dangers of its colliding iron cubes.
---