Dinosaur Timeline

[>65 million years ago]

• Dinosaurs rule the earth.
• Xander appears after being flung back in time. (Dinosaur)
  

[~65 million years ago]

• Demons come to earth and wipe out the dinosaurs.
• Xander begins to avoid all signs of civilization.
• Demons rule the earth. (Existence)

[Eocene Epoch (55.8-33.9 mya)]

• Xander sees "cats" and (semi-)domesticates them. (Pets)
  

[unknown]

• The Shadow Men create the slayer, and she drives the demons from earth with the help of an army.
• Xander returns to civilization. (Civilization)
  

[~4000 BC]

• Immortals' Watchers form.

[~5,000 years ago|3000 BC]

• The Goa'uld are driven from earth and the Stargate buried.
• Some version of SG-1 is stranded in the past.
• Methos takes his first head.
• Xander takes Methos on as a student. (Faith)
  

[bronze age]

• Xander takes Methos on trip around the world in a ship. (Referenced in Recruitment)
  
• Methos starts avoiding Xander.
• The 4 horsemen form.

[79 AD]

• An Immortal (name?) kills Lucia.
• Xander kills the Immortal on holy ground. It's his third Immortal kill. (Vesuvius)
  

[765]

• Methos learns to hate boats after a voyage with 6 monks.

[1981]

• Xander is born.

[1997]

• Buffy moves to Sunnydale.

[2003]

• Sunnydale destroyed in battle with the First.
• Xander loses his eye.
• Xander travels to Africa to find Slayers.

[undecided]

• Xander is still in Africa. (Phone Home)
  
• A careless wish sends Xander into the past. (Spurious Wishing)
  

[after undecided]

• (before undecided) Xander majors in womens' studies. Dade Murphy is his roommate.
  
• (possibly before undecided) Xander refinds Methos. (Houseguests, The Past)
  
• (after Xander refinds Methos) Xander is recruited by the SGC as a linguist. (Recruitment, Linguistics?,)
  
• Xander is sent to Atlantis. (Obstacles)
  

Events with undecided order:

• (sometime within Xander's natural lifetime) Xander learns he's immortal.
• Xander takes 5 of the 6 Immortals' heads he's taken in his life. (2 before Lucia, 3 after)