When things began

Abagond

CMB_Timeline300_no_WMAP

Everything in the universe has a beginning. Here are some of those things that are still with us and when they began, listed by year:

  • -13,700,000,000 the universe, time, space, matter, energy
  • -13,300,000,000 stars
  • -12,600,000,000 Milky Way Galaxy
  • -4,570,000,000 Sun (but 30% dimmer than it is now)
  • -4,540,000,000 Earth
  • -4,500,000,000 Moon
  • -4,400,000,000 clouds, rain, the oceans begin to fill
  • -4,031,000,000 rocks (oldest known)
  • -4,000,000,000 life, DNA
  • -2,500,000,000 breathing oxygen
  • -1,200,000,000 sex
  • -900,000,000 swimming
  • -580,000,000 eyes, animals with bilateral symmetry
  • -550,000,000 brains
  • -540,000,000 hearts
  • -480,000,000 fish
  • -450,000,000 Appalachian Mountains
  • -425,000,000 land plants
  • -385,000,000 trees
  • -365,000,000 legs, lungs
  • -220,000,000 lizards
  • -164,000,000 hair
  • -160,000,000 birds, feathers
  • -150,000,000 North America as a continent
  • -125,000,000 flowers
  • -100,000,000 South America and Africa as continents
  • -92,000,000 ants
  • -80,000,000 Rocky Mountains
  • -66,000,000 grass
  • -55,000,000 Australia as a continent
  • -25,000,000 seeing in colour (among our ancestors)
  • -3,500,000 hands, technology, walking on two feet, eating meat (among our ancestors)
  • -1,200,000 black skin…

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