History of earth By Suhan 4570 BCE Creation of early earths Period: 4570 BCE to 4000 BCE Hadean Period: 4570 BCE to 541 BCE Precambrian Period: 4000 BCE to 2500 BCE Archean 3600 BCE The emergence of prokaryotes 3200 BCE The emergence of photosynthesis germs Period: 2500 BCE to 540 BCE Proterozoic Eon 1600 BCE The emergence of eukaryote 541 BCE The emergence of multicellular animals Period: 541 BCE to 1 CE Phanerozoic Eon Period: 541 BCE to 252 BCE Paleozoic era 513 BCE Cambrian explosion 311 BCE The emergence of insects with wings 270 BCE The Pangea generation Period: 252 BCE to 66 BCE Mesozoic 245 BCE The emergence of dinosaur and mammals 175 BCE The emergence of gymnosperm 99 BCE The emergence of angiosperm Period: 66 BCE to 1 CE Cenozoic era 5 BCE The emergence of apes