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Universe Timeline 4.8

Compresses the history of the universe into a single year.
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Date Day of week Time Event
01/01/28 Saturday The Big Bang. Beginning of the space and time.
04/01/28 Tuesday Methuselah star. Oldest known star in the universe.
06/01/28 - 24/01/28 Thursday - Monday Reionization era. Early stars start ionizing interstellar gas.
08/01/28 Saturday First black holes form
14/01/28 Friday Mass star formation. Universe starts to heat once again.
16/01/28 Sunday First galaxies form
17/01/28 Monday GRB 090423. Oldest gamma ray burst ever observed.
22/01/28 Saturday Hubble ultra deep field
26/01/28 Wednesday Quasar CFHQS J2329-0301. Oldest known quasar.
30/01/28 Sunday PST B1620-26. Oldest known exoplanet.
01/02/28 Tuesday Milky Way forms
15/02/28 Tuesday GRB 140419A supernova. Second oldest gamma ray burst.
25/02/28 Friday BX442 galaxy. Oldest known spiral galaxy.
01/03/28 Wednesday Kapteyn b. Oldest known exoplanet lying within the habitable zone.
04/03/28 Saturday Milky Way's cosmic halo forms
15/03/28 Wednesday Star formation rate peaks. Universe starts to cool Temperature averages around 13000 K.
28/03/28 Tuesday Oldest population I stars. First stars abundant in metals.
31/03/28 Friday Universe becomes habitable. First life-friendly star systems emerge.
13/04/28 Thursday JKCS 041. Oldest galactic cluster.
18/04/28 Tuesday Universe reaches 1/3 of its present diameter
21/04/28 Friday Milky Way star formation rate stabilizes
28/04/28 Friday Barnard's star forms. Oldest close solar neighbor.
07/05/28 Sunday Oldest known evidence for dark energy
12/05/28 Friday Milky Way's thin disk starts to form
20/05/28 Saturday Lalande 21185
23/05/28 Tuesday Lacaille 9352
02/06/28 Friday Milky Way star formation rate begins to decline
08/06/28 Thursday Mizar forms
16/06/28 Friday GRB 080319B. Most powerful gamma ray burst ever observed by humans.
16/06/28 Friday Arcturus forms. 4th brightest star in the night sky.
26/06/28 Monday Universe cools below 5 K
29/06/28 Thursday Growth of large galaxies slows
02/07/28 Sunday 1/2 the age of the Universe
04/07/28 Tuesday Alpha Centauri forms. Closest star system to the Sun.
07/07/28 Friday Alnitak forms. Left star of the Orion's Belt.
12/07/28 Wednesday Milky Way starts spiralizing
15/07/28 Saturday Age of an average earth-like planet
20/07/28 Thursday 61 Cygni forms
25/07/28 Tuesday Dark energy overtakes gravity. Universe's expansion rate starts to accelerate.
31/07/28 Monday Tau Ceti forms
08/08/28 Tuesday Solar nebula starts collapsing
08/08/28 Tuesday Milky way becomes a spiral galaxy
16/08/28 Wednesday Gliese 570 forms
25/08/28 Friday Proxima Centauri forms. Closest star to the Sun.
29/08/28 Tuesday SN 2005ap supernova. Brightest supernova ever observed.
01/09/28 Friday The Sun forms
02/09/28 Saturday Proto-earth forms. Planets, asteroids and comets form from the Sun's protoplanetary disk.
02/09/28 Saturday Formation of the Moon. Theia impacts Earth, the Moon forms from the coalesced debris.
06/09/28 Wednesday Oceans form on Earth. Asteroids bring water to Earth.
06/09/28 Wednesday First known minerals. Zircons form at Jack Hills, Australia.
10/09/28 Sunday Mintaka forms. Right star of the Orion's Belt.
11/09/28 - 19/09/28 Monday - Tuesday Life emerges on Earth
13/09/28 - 22/09/28 Wednesday - Friday Late Heavy Bombardment
14/09/28 Thursday Earliest known rock. (Aggregate of minerals).
16/09/28 Saturday Greenstone rock belt
22/09/28 Friday Oldest banded iron formation
27/09/28 Wednesday Vaalbara supercontinent emerges
30/09/28 Saturday Last universal ancestor. Split between bacteria and archaea.
30/09/28 Saturday Cyanobacteria fossils. Warrawoona, oldest fossil evidence of life on Earth.
05/10/28 Thursday Compressional tectonics
06/10/28 Friday Barberton event. One of the largest impacts ever, left a 300 mi / 480 km crater.
08/10/28 Sunday Ur supercontinent forms
08/10/28 Sunday Anoxygenic photosynthesis developed by bacteria
10/10/28 Tuesday First land bacteria
13/10/28 Friday Cyanobacteria develop true photosynthesis. Life begins to produce oxygen.
16/10/28 Monday Zeta Reticuli forms
16/10/28 Monday Kenorland supercontinent emerges
16/10/28 Monday Tides decline below 1000 ft / 300 m
18/10/28 Wednesday Vaalbara supercontinent breaks up
21/10/28 Saturday Major komatiite eruption
21/10/28 Saturday First eukaryotes emerge. Early estimate.
24/10/28 Tuesday Oldest known giant carbonate platform
25/10/28 Wednesday Zeta Puppis forms
26/10/28 Thursday Great Oxygenation event. Bacterially produced oxygen starts to accumulate in the atmosphere.
26/10/28 Thursday Movement of the tectonic plates commences
29/10/28 Sunday Suavjarvi impact event left oldest still recognizable crater
29/10/28 - 04/11/28 Sunday - Saturday Huronian glaciation. First snowball earth period.
01/11/28 Wednesday Continental red beds form
03/11/28 Friday Atmospheric oxygen level surpasses one percent
03/11/28 Friday Ozone layer forms
06/11/28 Monday Earliest known eukaryote fossils (acritarchs)
06/11/28 Monday Earliest multicellular life. Francevillian Group Fossil.
08/11/28 Wednesday Vredefort impact event. One of the largest impacts ever left a 190 mi/ 300 km crater.
11/11/28 Saturday Atmospheric oxygen level surpasses 15 percent
11/11/28 Saturday Natural nuclear reactor forms in Oklo, Gabon
12/11/28 Sunday Sudbury impact, event left a 160 mi / 260 km crater
14/11/28 Tuesday Supercontinent Columbia forms
15/11/28 Wednesday Vishnu Basement Rocks. Oldest rocks in the Grand Canyon.
16/11/28 Thursday Oldest sand dune ergs
19/11/28 Sunday Mitochondria assimilate into eukaryotic cells
22/11/28 Wednesday Supercontinent Columbia breaks up
23/11/28 Thursday Geologic platform covers expand
24/11/28 Friday Population of stromatolites rapidly rises
25/11/28 Saturday Procyon forms. Brightest star in Canis Minor.
27/11/28 Monday Greenville orogeny starts
30/11/28 Thursday Supercontinent Rodinia forms
30/11/28 Thursday Bangiomorpha pubescens. First sexually reproducing organism.
01/12/28 Friday Population explosion of eukaryotes
02/12/28 Saturday Earliest flagellate protists
09/12/28 Saturday Population of stromatolites starts to decline
10/12/28 Sunday Protista population explodes
11/12/28 Monday Kaigas glaciation. Snowball earth period.
12/12/28 Tuesday Supercontinent Rodinia breaks apart
12/12/28 - 14/12/28 Tuesday - Thursday Sturtian glaciation. Snowball earth period.
14/12/28 Thursday Marinoan glaciation. Snowball earth period.
16/12/28 Saturday Fossilized worm impressions in China
16/12/28 Saturday Avalon explosion. Ediacaran fauna emerges.
17/12/28 Sunday Cambrian explosion. Exponential diversification of life, most major animal phyla appear.
18/12/28 Monday First trilobites
20/12/28 Wednesday 1:33 am Plants and arthropods colonize the land
20/12/28 Wednesday 4:44 am Ordovician extinction event. 60% of all species go extinct.
20/12/28 Wednesday 8:39 pm First air-breathing animals
21/12/28 Thursday 12:34 pm First tetrapods
21/12/28 Thursday 10:07 pm First tree-like plants
22/12/28 Friday 4:29 am Late Devonian extinction. 70% of all species go extinct.
23/12/28 Saturday 5:56 am First amniotes
23/12/28 Saturday 12:18 pm First reptiles
23/12/28 Saturday 9:51 pm Atmospheric oxygen level peaks at 35%. Arthropods grow into unprecedented sizes.
24/12/28 Sunday 1:02 am Pangaea forms. Last supercontinent.
25/12/28 Monday 8:13 am Permian extinction event. Largest extinction event in history, 90-96% of all species go extinct.
25/12/28 Monday 8:52 am Sirius forms . Brightest star in the night sky.
25/12/28 Monday 8:57 pm First dinosaurs
26/12/28 Tuesday 12:46 am First mammals
26/12/28 Tuesday 4:03 pm Triassic extinction event. 75% of all species go extinct.
26/12/28 Tuesday 11:03 pm First giant sauropods
27/12/28 Wednesday 5:25 am Pangaea splits into Laurasia and Gondwana
27/12/28 Wednesday 7:58 am First stegosaurs
27/12/28 Wednesday 9:20 pm First birds
28/12/28 Thursday 3:42 am Madagascar splits from Africa
28/12/28 Thursday 1:15 pm First flowering plants
28/12/28 Thursday 1:15 pm Laurasia and Gondwana begin to drift apart
29/12/28 Friday 4:31 am Spinosaurus evolves. Largest of all carnivorous dinosaurs.
29/12/28 Friday 8:20 am First bees
29/12/28 Friday 2:42 pm Indian subcontinent splits from Gondwana
29/12/28 Friday 9:04 pm Australia splits from Antarctica
30/12/28 Saturday 4:42 am Tyrannosaurus rex evolves
30/12/28 Saturday 5:59 am Cretaceous extinction event. 75% of all species vanish.
30/12/28 Saturday 9:48 am First primates evolve
30/12/28 Saturday 12:59 pm First modern birds
30/12/28 Saturday 4:10 pm Indian subcontinent collides with Asia. Tiber and Himalayas start to rise.
30/12/28 Saturday 6:05 pm Whales return to the water
30/12/28 Saturday 10:32 pm Antarctic ice cap begins to grow
31/12/28 Sunday 1:43 am Grasslands become widespread
31/12/28 Sunday 4:54 am South America separates from Antarctica
31/12/28 Sunday 7:27 am First elephants. Eritreum melakeghebrekristosi.
31/12/28 Sunday 12:32 pm Divergence of great apes and lesser apes
31/12/28 Sunday 2:27 pm First bovids
31/12/28 Sunday 4:59 pm First large horses
31/12/28 Sunday 6:54 pm Rigel forms. Brightest star in Orion.
31/12/28 Sunday 7:13 pm Betelgeuse forms. Second brightest star in Orion.
31/12/28 Sunday 8:10 pm Last common ancestor humans and chimpanzees
31/12/28 Sunday 8:12 pm - 8:36 pm Messinian salinity crisis. Strait of Gibraltar closes tight, Mediterranean Sea dries out.
31/12/28 Sunday 9:27 pm Australopithecus evolves
31/12/28 Sunday 10:05 pm Great American Interchange. Isthmus of Panama rises, North and South America join, extensive fauna exchange follows.
31/12/28 Sunday 10:24 pm Current ice age begins
31/12/28 Sunday 10:35 pm First members of the genus Homo appear
31/12/28 Sunday 11:02 pm First controlled use of fire by Homo erectus
31/12/28 Sunday 11:30 pm Last reversal of the Earth's magnetic field
31/12/28 Sunday 11:35 pm Yellowstone Caldera erupts
31/12/28 Sunday 11:40 pm Earliest human engravings. Zig-zag patterns on shells in Java.
31/12/28 Sunday 11:48 pm Earliest instances of burial
31/12/28 Sunday 11:50 pm Neanderthals evolve
31/12/28 Sunday 11:52 pm Anatomically modern humans appear in Africa
31/12/28 Sunday 11:56 pm Humans begin migrating out of Africa
31/12/28 Sunday 11:57 pm Toba supervolcanic eruption. Human population falls to 10,000.
31/12/28 Sunday 11:58 pm 23:58:39 Neanderthals go extinct
31/12/28 Sunday 11:59 pm 23:59:25 First domesticated dogs
31/12/28 Sunday 11:59 pm 23:59:39 Beginning of agriculture
31/12/28 Sunday 11:59 pm 23:59:46 Wheel invented
31/12/28 Sunday 11:59 pm 23:59:48 Writing invented
31/12/28 Sunday 11:59 pm 23:59:49 Great Pyramid
31/12/28 Sunday 11:59 pm 23:59:52 Iron Age begins
31/12/28 Sunday 11:59 pm 23:59:55 Julius Caesar
31/12/28 Sunday 11:59 pm 23:59:58 Galileo Galilei
31/12/28 Sunday 11:59 pm 23:59:59 Charles Darwin