History
This is the intro to history
Cosmological History
- -13.8bn - Big Bang (Big Bounce?)
- -4.5bn - Earth formed
Evolutionary History
- -4b - Single-celled life
- -3.5b - Photosynthesis
- -2b - Eukaryotes
- -1.6b - Multi-Celled Life
- -1.5b - Fungi
- -800m - Plants
- -700m - Animals
- -538m - Cambrian Explosion
- -518m - Vertebrates
- -390m - Tetrapods
- -243m - Dinosaurs
- -170m - Mammals
- -85m - Primates
- -2.3 - Homo Habilis
- -2m - Homo Erectus
- -300k - Homo Sapiens
See also The Ancestor's Tale.
Prehistory
- -130k-100k - Out of Africa
- - 11.7k - Neolithic/First Agricultural Revolution
Ancient History
- 4000 BCE - Development of City States
- 3000 BCE - Writing
Medieval History
- 476 - Fall of the Roman Empire
- 1347-1351 - Black Death