Who: cell
What: carbon based chemical compound
When: 3.8 b. y. a
Where: on earth
Item 2: Mass Extinction
What: a meteorite hit the earth
When: 65 m. y. a
Where: Mexico
Item 3: upright Bipedalism Begins
Who: 3 hominine species “ Australopithecus Afarensis
What: walked upright allowing them to go further while looking for food
When: 3.56 m. y. a
Where: east Africa
Item 4: stone tools developed
Who: hominines
What: tools made of bones
When: 2.6 m. y. a
Where: east Africa
* Scavenger rather than hunters
Item 5: Handy man appears
Who: Homo habilis aka handy man
What: increase cranial, well developed incisor and canine teeth, made tools of bone, wood and plants
When: 1.9 m. y. a
Where: south and east Africa
Item 8: H. sapiens emerges
Who: Homo sapiens
What: modern human (ancestors of H. heidelbergensis)
When: 500,000 y. a
Where: Africa/neondetal(Europe)
Item 10: modern human appear
Who: homo exectus
What: in search for shelters, tools, and clothen
When: 120,00 y. a
Where: the Middle East, Asia
Item 15: migration begins
What: land brigde glacier (beringa) connected Siberia to alaska
When: 25 000 y.a
Item 21: origins of agriculture
What: farming
When:9000 bce
Item 23: metallurgy developed
What: forming pottery out of model clay
When: 6500b.c.e
Where: middle east
Item 25: First surgery performed
When: 5100 bce
What: trepanation or intentional removal of a small portion of the skull
Tool used: sharo, stone microblades
Item 34: earlist know Writing
When: 3500 bce
Where: mesopotomia
What: clay token (as bills and receipts)
Item 35: