Timeline: History of Life on Earth | Timetoast

Period: Jan 1, 2011 to Dec 31, 2011

Entire existence of Earth

We're going to compress the history of life on Earth into one calendar year....
Period: Jan 1, 2011 to Mar 31, 2011

Harsh & tubulent early Earth

Volcanoes erupting. Water vapor cooling & condensing, but immediately vaporized again by scalding hot meteroites....
Mar 21, 2011

First life forms! Prokaryotic cells

They are bacteria of which kingdom?
Period: Mar 21, 2011 to Sep 3, 2011

Cyanobacteria put oxygen into our atmosphere
Jun 18, 2011

First eukaryotic cells
Sep 3, 2011

First multicellular organisms (seaweed)
Nov 8, 2011

Oldest marine worms and jellyfish
Nov 21, 2011

First fish
Nov 24, 2011

First vascular land plants
Dec 1, 2011

First insects
Dec 2, 2011

First amphibians
Dec 3, 2011

First ferns
Dec 5, 2011

First reptiles
Dec 12, 2011

Appalachian mountains rise, then erode
Period: Dec 12, 2011 to Dec 26, 2011

Age of Dinosaurs
Dec 13, 2011

First dinosaurs
Dec 14, 2011

First mammals

shrew-like animals
Dec 19, 2011

First bird
Dec 22, 2011

First angiosperms
Dec 26, 2011

Mammals dominate
Dec 31, 2011

First hominids appear at noon

Homo sapiens - real humans! - appear at 11:45pm.
Dec 31, 2011

Revolutionary War at 11:59pm