Master Timeline: Pre-20th Century

Cosmological & Prehistoric Era (Dawn of Creation – 1,000,000 B.C.)

13,800,000,000 B.C. (Dawn of Creation): The Big Bang creates the universe and condenses six elemental singularities into the Infinity Stones: Space, Mind, Reality, Power, Time, and Soul. Arishem and the Celestials emerge to forge galaxies and expand life throughout the cosmos.
Pre-Creation / Dark Era: The Dark Elves thrive in the dark matter preceding the light of the universe.
~5,000,000 B.C.: Celestial bio-seeding and cosmic force interactions begin altering early hominid DNA on Earth.
1,000,000 B.C.:
- The Celestials emerge, seeding life, creating Eternals and Deviants across worlds, and planting the Celestial embryo, Tiamut, inside Earth.
- Celestial Eson the Searcher uses the Power Stone to destroy entire worlds.
- The Dark Elf Malekith attempts to return the universe to dark matter using the Aether (Reality Stone) during the Convergence, but is defeated by King Bor of Asgard.
- The Elder God Chthon writes the Darkhold at Wundagore Mountain.
- Agamotto defeats Dormammu to defend Earth, creates the Eye of Agamotto (Time Stone), builds Kamar-Taj, and establishes the Masters of the Mystic Arts alongside three planetary Sanctums (New York, London, Hong Kong) to protect Earth from dimensional threats.

Ancient Era (10,000 B.C. – 1st Century B.C.)

10,000 B.C.: Prehistoric Earth undergoes rapid evolutionary shifts. Advanced underwater and land empires of Atlantis and Lemuria wage cataclysmic warfare, leaving few survivors (such as Namor). The Inhumans establish their hidden city, Attilan, in the Himalayas.
8000 B.C.: Apocalypse (En Sabah Nur) is born in ancient Egypt as the world's first mutant. Over the next few thousand years, he conquers and destroys numerous civilizations and is worshipped as a god across the ancient world.
5000 B.C.: The Eternals arrive on Earth via the starship Domo to protect humanity from the Deviants and foster societal advancement.
Pre-3600 B.C.: Apocalypse telekinetically constructs the pyramids in Ancient Egypt.
3600 B.C.: En Sabah Nur is betrayed by mutinous worshipers and entombed alive. His Four Horsemen perish while sacrificing themselves to preserve his dormant body inside the pyramid burial vault.
3100 B.C. / ~2,500,000 B.C. (Vibranium Impact): A massive Vibranium meteor strikes Earth. The primary impact site in Central Africa leads to the rise of Wakanda, while additional traces impact underwater trenches in the Atlantic (Talokan).
2988 B.C. (First Battle of Svartalfheim): King Bor buries the Aether deep underground following the defeat of the Dark Elves, who enter hibernation.
2500 B.C.: The Dweller-in-Darkness attacks the magical realm of Ta Lo; the Great Protector aids the inhabitants in sealing the soul-devouring entity behind the Dark Gate.
~2000 B.C.: Primitive shadow clans in Asia begin practicing blood magic, laying the early groundwork for the Hand.
c. 1200 B.C.: Asgardian and Mediterranean pantheons interact directly with ancient human civilizations during early Bronze Age conflicts.
1000 B.C.:
- The cosmic Phoenix Force obliterates the homeworld of the D'Bari species. The surviving D'Bari refugees, led by Vuk, begin tracking the entity across space to claim its power.
- Five warring Wakandan tribes unite under Bashenga, the first Black Panther, after the Panther Goddess Bast guides him to the Heart-Shaped Herb.
c. 1000 B.C. (K'un-Lun & The Iron Fist): The mystical city of K'un-Lun merges with Earth's dimension, establishing the lineage of the Immortal Iron Fist to guard the pass against Shou-Lao the Undying.
c. 500 B.C.: Mystic masters at Kamar-Taj forge early artifacts including the Sling Rings, the Cloak of Levitation, and the Staff of One to draw power from the Multiverse.
c. 300 B.C.: Early precursor secret societies form across Eurasia to manipulate political trade routes and empire expansion.
27 B.C.: The Roman Empire is established, reshaping political control across the Mediterranean.

Classical & Medieval Era (1st Century A.D. – A.D. 1500)

c. 4 B.C. – A.D. 1: Birth of Jesus of Nazareth in Judea, establishing a primary reference point for Earth's Terrestrial Calendar and establishes multiple religions.
c. A.D. 30–33: Crucifixion of Jesus of Nazareth in Jerusalem under Roman jurisdiction.
A.D. 272 (Feb 27): Flavius Constantinus (Constantine the Great) is born.
A.D. 306 (Jul 25): Flavius Constantinus is proclaimed Roman Emperor.
A.D. 530 (Camelot & Excalibur): Merlin and Sir Percy of Scandia (the Black Knight) defend Camelot against Morgan le Fay, binding the Ebony Blade's blood curse.
A.D. 965 (Battle of Tønsberg): Frost Giants invade Earth at Tønsberg, Norway. King Odin defeats Laufey, retrieves the Casket of Ancient Winters, and adopts Laufey's abandoned infant son, Loki. Odin later hides the Tesseract (Space Stone) in a church in Tønsberg.
~A.D. 1000 (The Ten Rings): Xu Wenwu discovers the magical Ten Rings, granting him immortality and superhuman strength. He forms the global shadow empire known as the Ten Rings.
~A.D. 1000–1100: An Inhuman named Alveus (Hive) is banished by early humans and Kree overseers to the planet Maveth using a Kree Monolith. A worshipping cult forms on Earth to facilitate his return, eventually evolving over centuries into HYDRA.
A.D. 1100s (The Hand's Discovery): The five elders of the Hand defect from K'un-Lun and discover dragon bone deposits under Asia and Europe, unlocking the elixir of immortality.
A.D. 1400s: Transylvanian warlord Vlad Tepes (Dracula) becomes a vampire, establishing Earth's dominant vampiric bloodlines.

Early Modern Era & Genetic Awakenings (A.D. 1500 – A.D. 1900)

A.D. 1521: The Eternals eradicate the last known Deviant in the Americas during the Fall of Tenochtitlan. Druig leaves the group to build an isolated Amazonian commune, prompting the Eternals to disband.
A.D. 1571: Indigenous Mayans fleeing Spanish conquistadors ingest an underwater Vibranium-laced plant, mutating into water-breathing beings and founding Talokan. Namor is born shortly thereafter.
A.D. 1693 (Salem Witch Trials): Agatha Harkness is brought to trial by her own coven in Salem, Massachusetts, for practicing forbidden dark magic. She drains the life force of her mother, Evanora, and the entire coven.
1820s: Victor Creed (Sabretooth) is born.
A.D. 1832: James Howlett (Wolverine) is born in the Northwest Territories of Canada.
A.D. 1845:
- John Howlett (James's stepfather) is killed by groundskeeper Thomas Logan.
- James Howlett's mutant abilities (bone claws and rapid healing) manifest during the trauma. James slays Thomas Logan, who is revealed to be his biological father.
- James Howlett and his half-brother Victor Creed flee into the wilderness together.
A.D. 1859 (Mister Sinister): In Victorian London, biologist Dr. Nathaniel Essex encounters an awakened En Sabah Nur and is genetically altered into Mister Sinister, initiating his multi-century genetic research on mutants.
A.D. 1861–1865: James Howlett and Victor Creed enlist and fight for the Union Army in the American Civil War.
A.D. 1889:
- April 20 – Adolf Hitler is born.
- A time-traveling Wade Wilson (Deadpool) uses Cable's repaired time device to locate infant Hitler, contemplating altering the course of world history.
A.D. 1890s: The Hellfire Club expands its elite Inner Circle from London to New York and Philadelphia, secretly pooling financial capital and mutant influence.
A.D. 1900:
- Early industrial espionage and military R&D efforts accelerate globally, setting the stage for 20th-century super-soldier research and intelligence networks.
- James Howlett and Victor Creed continue operating as military mercenaries and survivalist wanderers across North America at the turn of the century.