The History of the Universe
By: Haile Mokrzycki
After the Hadean Era is the Archean Era. Some major events that took place include:
- The Earth's Ocean formed
- First cell: prokaryotes, single-celled bacteria
- Marine Photosynthesis begins
Glad that oxygen exists! But it didn't happen until the Proterozoic Era. Eukaryotes and multicellular organisms came to life. Photosynthesis on land started here. The Cambrian Explosion? Yours truly, the Proterozoic Era. It was the birth of many new animals and organisms. But it was also the mass extinction of them (three times! that's pretty bad, but don't worry the story of our universe gets better!).
The Mesozoic Era was SUPPOSED to be the beacon of hope. Instead, MORE DEATH.
But, on the brighter side, we got animals and lots of em!
(that died in the mass extinction)
(way to look on the bright side.....)
Now in this era, we got some cool ice fish and Ardipithecus Ramidus, the closest fossil to chimp-human ancestors. Then later, some monkeys.....ooooo, and evidence of using stone tools. And next, Homo Habilis, homo Neandertalensis, and homo sapiens. Sooner, we got some clothes.
More time passes and we're evolving! Learning how to read and write, take baths, learn languages. Today, we are in this era. And we're still growing! Who knows what lies ahead?