Earth
- -13.8 bln β Big bang
- -4.5 bln β Earth is formed
- -4.1 bln β Earth habitable for life
- -3.7 bln β First life appears
- -3.5 bln β photosynthesis
- -1.6 bln β first multi-cell organism
- -1 bln β origin of sex with single-celled eukaryotes
Brain (580 mln β nervous system in Cnidarians, 270 mln β central nervous system or proto brain in Flatworms) Read more in
- -543 mln β Eye and Cambrian explosion
Now
- 1.1 bln β earth will become not habitable for life (cc )Grabby Aliens
- 5 bln - Sun will run out of fuel (its here already for 5 bln)
Human
the original divergence between humans and chimpanzees occurred 13 (Ma), however interbreeding continued until as recently as 4 Ma
3.3 mln β stone tools
2.3 mln β earliest likely control of fire and cooking
1.5 mln β advanced stone, bone tools, advanced hafting widespread in South Africa by 500k (think tool+wooden handle that increased tools functionality i.e. axe or spear)
350β150k β development of language
Read more in
- 500k β First language (via Robin Hanson)
by 100k ago the skeleton is mostly similar to the current one
- 100k β Beginning of the trade (see Matt Ridley TED talk)
- 100k β our ancestors started to put valuable goods into their graves, suggesting beliefs in an afterlife. Such beliefs seem to go together with ancestor worship, and with shamans who specialize in religion. (via Robin Hanson)
- 50k β more complicated tools and arts
- 47k β homo sapiens reached Malesia
- 45k β homo sapiens reached Autralia
- 45k β homo sapiens reached Europe (where they met Homo Neanthertalis, who lived there for a couple of hundred of thousends years, 35k years ago they were pushed to Giblartar and 25k ago they died of)
- 15k β Homo sapiens crosses to North America
- 18k β The peak of the Ice Age
with the farming revolution, humans started to live more densely, and built special religious spaces. They also found more potent drugs, such as poppy seeds and beer. We then turned to ritual (often human) sacrifice to capricious gods. In larger communities, we soon after saw social stratification, including a separate classes of priests, especially when food storage was possible. (via Robin Hanson)
Then starting roughly 4Kya, near the βAxial Ageβ, we saw the rise of a new kind of religion associated with farming and herding in even larger communities, at the latitudes where such larger communities were possible. Most βtraditionalβ religions of today arose during this ancient era. This type of religion was centered on individual beliefs in moralizing gods described in writings that told of stories and doctrines. Religion became a personal duty, often resulting from a personal choice, and love and forgiveness came to matter more, relative to the sheer power of gods. (via Robin Hanson)
30k β The first images in caves
6k β Sumarian Trader trancription