24 hours of a sort

 PAST, PRESENT

(billions of years ago)

Cosmic History & Early Earth

13.7 bya Big Bang

13.2 Bya Milky Way 

4.6 Bya Solar System 

3.8 Bya End of Late Heavy Bombardment event  

3.5 Bya First recorded fossils 

2.5 Bya Oxygen in atmosphere 

2 Bya Evolution of cells with nuclei (eukaryotes) 

1.2 Bya Multicellular organisms evolve

(millions of years ago)

Early Primates & Diversification of Life

Cambrian explosion: wide variety of animals burst onto the evolutionary scene 

13.7 bya First land animals 

13.7 bya Pangea 

13.7 bya Permian–Triassic extinction event: 9 in 10 marine species and 7 in 10 land species vanish 

13.7 bya Dinosaurs evolve (Note: Dinosaurs existed for over 100 million years) 

13.7 byaMammals evolve 

13.7 byaPangea breaks apart 

13.7 byaCretaceous–Paleogene extinction 

13.7 byaPrimates 

13.7 byaAustralia breaks off from Antarctica 

India smashes into Eurasia and causes Himalayas 

Walking upright 

Lucy lives  

Homo genus appears and dawn of technology 

Humans spread from Africa to Eurasia. Evolution of different human species (s)

Homo erectus evolve

(thousands of years ago)

Prehistory

Cooking and controlled fire 

Homo Sapiens (anatomically modern humans) 

Homo Sapiens migrated out of africa and clothing appears 

Cognitive Revolution - “the point where history declared its independence from biology.” - 41 Prior to this, “Biology sets the
basic parameters for the behavior and capacity for [humans].” (Harari 43) Sapiens split significantly from other human
species, who do not develop this cognitive capacity. “It is [no longer] enough to comprehend the interaction of genes,
hormones and organisms. It is necessary to take into account the interaction of ideas, images (myths) and fantasies as well.” (Harari 42) 

Cave drawings 

Behavioral modernity -- Abstract thinking abilities: 1) swift expansion of knowledge;  2) preserve the knowledge gained over
generations;  3) build on past knowledge to gain even deeper insight  (Kurzgesagt - What Happened Before History)

Homo sapiens reach Australia 

Musical instruments 

Pottery first used 

Homo Sapiens settle Americas 

Agricultural revolution / End of ice age / humans colonize all ice free areas

Neolithic revolution: development of agriculture

Arab Spring - anti-monarchy, pro-democracy protests; beginning in Tunisia, spreads to Bahrain, Syria, Egypt, Yemen, Libya


Iran nuclear deal


US allies with Kurdish SDF to fight ISIS (s) 
Turkish military coup against Erdoğan fails