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Time since first humans in Americas

Time since first humans in Americas (15,000 y)

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Neat Ratios ...

Time since first humans in Americas (15,000 y)

  • is 1/5000 of Time since the earliest primates (75 million y)...more
  • is 1/2 of Time since first humans in Europe (30,000 y)...more
  • is 1/2 of Time since extinction of Neanderthals (30,000 y)...more
  • is 1/2 of Age of earliest sewing needle (30,000 y)...more
  • is 1/2 of Time since the earliest bread baking (30,000 y)...more
  • is 4 x Age of earliest swords (3,700 y)...more
  • is 20 x Time since the birth of Dante Alighieri (757 y)...more
  • is 40 x Time since the birth of Newton (379 y)...more
  • is 200 x Period of Halley's Comet's orbit (75.3 y)...more
  • is 200 x Time since the invention of the transistor (74 y)...more
  • is 250 x Time since first human went into space (60 y)...more
  • is 400 x Time since first Apple Macintosh Computer launched (38 y)...more
  • is 500 x Lifespan of horse (30 y)...more
  • is 500 x Period of Saturn's orbit (29.5 y)...more
  • is 1000 x Time since first iPhone launched (15 y)...more
  • is 1000 x Lifespan of a cat (15 y)...more

If this was a standard unit ...