Billions of years ago

16 billion years ago

The age of the universe was given in VOY: "Good Shepherd" as 16 billion years. Current scientific evidence indicates an age of 13.7 billion years.

9 billion years ago

7 billion years ago

5 billion years ago

4.5 billion years ago

4 billion years ago

3.5 billion years ago

According to actual science, life already gained a foothold on Earth 4.1 billion years ago. However, this wasn't theorized until after the shooting of "All Good Things...".

2 billion years ago

1 billion years ago

Millions of years ago

400 million years ago

  • In the Permian period, Eryops, the last common ancestor of cold-blooded and warm-blooded organisms, lives on Earth. (VOY: "Distant Origin")

300 million years ago

87 million years ago

65 million years ago

  • Earth's dominant reptile superorder, the dinosaurs, are wiped out when an asteroid impacts the planet. (VOY: "Distant Origin"; ENT: "Azati Prime")
  • Some of Earth's dinosaurs survive the asteroid impact and continue to develop and name themselves the Voth. Sometime thereafter they leave Earth and travel to the Delta quadrant where they create one of the first interstellar empires in the quadrant. (VOY: "Distant Origin")

20 Million years ago

1 Million years ago


Ayelborne said that his people had evolved beyond the need for physical bodies millions of years ago.

Hundreds of thousands of years ago

600,000 years ago

500,000 years ago

Ro Laren stated in a conversation with Captain Jean Luc Picard that the ancient Bajorans had flourished "when humans were not yet standing erect". Homo Erectus existed on Earth from about 1.8 million years to about 200,000 years ago. Homo Sapiens began to emerge at about 200,000 years ago.

200,000 years ago

Star Trek: Destiny presents a different point of origin for the Borg.

100,000 years ago

Tens of thousands of years ago

50,000 years ago

45,000 years ago

  • Extraterrestrial visitors, known as the "Sky Spirits", visit a people on Earth who become the indigenous inhabitants of America. (VOY: "Tattoo")

30,000 years ago

  • An ancient city was built with walls and a tablet that were dated to be over thirty millennia old. This city was inhabited until twenty-five thousand years ago after which, sediment buried the ruins and the ancient city of B'hala was built on top of it. (DS9: "The Reckoning")

28,000 years ago

22,000 years ago

20,000 years ago

12,000 years ago

10,000 years ago

Thousands of years ago

9,000 years ago

6,000 years ago

circa 4000 BC
Unknown aliens take or abduct several Humans from Earth to be eugenically bred on a distant planet, lest humanity destroy itself in its early technological age. Gary Seven, Agent 201 and Agent 347 will be among their descendants. (TOS: "Assignment: Earth")
3834 BC
Akharin is born in Mesopotamia on Earth. A soldier felled in battle, he soon realizes that no injury can kill him. He goes on through many aliases, becoming the immortal known as Flint. (TOS: "Requiem for Methuselah")
circa 3733 BC
Landru of Beta III preaches peace and coexistence among his people, ending a period of savagery. He creates a powerful computer to guide and protect his people after his death. (TOS: "The Return of the Archons")

5,000 years ago

circa 2700 BC
Earth is visited by aliens who settle in the region near Greece and the Mediterranean, where they are worshiped by the Greeks as gods. (TOS: "Who Mourns for Adonais?")
Sarpeidon experiences an ice age. Zarabeth is exiled to this time period, and Spock and Leonard McCoy are briefly stranded here as well. (TOS: "All Our Yesterdays")
circa 2600 BC
The Egyptians build the pyramids of Giza. They are observed by anthropologists from the future (specifically, the year 2769. (ENT: "Cold Front")

4,000 years ago

circa 1800 BC
The Xindi-Avians build a concealed fortress on a planet that will one day become the home of the Xindi Council. (ENT: "The Council")

3,000 years ago

circa 950 BC
Flint lives the life of King Solomon on Earth. (TOS: "Requiem for Methuselah")
circa 850 BC
The Vulcan monastery on P'Jem is built. (ENT: "The Andorian Incident")
circa 730 BC
The Kalandan outpost planet, "a few thousand years old" in 2269, may be constructed around this time. (TOS: "That Which Survives")
circa 500 BC
The Bajoran prophet Trakor first encounters the Orb of Prophecy and Change, and writes a series of prophecies concerning the Emissary of the Prophets. (DS9: "Destiny")
480 BC
The Battle of Thermopylae is fought on Earth between the Spartans and the Persians. (DS9: "What You Leave Behind")
circa 400 BC
Survivors from the Sahndara system supernova arrive on Earth. Their sojourn coincides with the time of the philosophers Socrates and Plato. "After the death of the Greek civilization they idolized" they move on to the planet Platonius.(TOS: "Plato's Stepchildren")
356-323 BC
Flint lives the life of Alexander the Great on Earth. (TOS: "Requiem for Methuselah")
214 BC
Construction begins on the Great Wall of China on Earth. (VOY: "11:59")
44 BC
Parmen, future leader of the Sahndaran refugee community, is born on Platonius. (TOS: "Plato's Stepchildren")
33 BC
Philana, future wife of Parmen, is born on Platonius. (TOS: "Plato's Stepchildren")
3 BC
Philana, now 30, stops aging. (TOS: "Plato's Stepchildren")

Indeterminate Past

External links

Dawn of time Timeline 1st century
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