-
5 BYA
Solar system began to form and a few million years later the sun began to form aswell -
4.6 BYA
Earth began to form and started colliding with other space debris -
4 BYA
Volcanos emmit gas forming an atmosphere -
4 BYA
Organic molecules began to form and accumulate -
3.5 BYA
Lynbgya begin to grow in colonies instde a structure stromatolites -
3 BYA
photosynthetic life began to form in proved by geologic evidence -
2.2 BYA
Earth appears like it does today -
1.5 BYA
Aerobic life forms began to form for example prokaryotype