1 |
Finish line of the mile run.
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0 |

Obama is the first black president and is beginning his second term.
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2 |
5279.9999997 feet into the mile run
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3 |

Grand parents 50th anniversary picture day.
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3 |
5279.927274 feet into the mile run
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12 |

America was attacked marking the beginning of hunting down Osama .
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4 |
5279.999621 feet into the mile run
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3,300 |

The iron age begins.
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5 |
5279.999936 feet into the mile run
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5,560 |

Wheel is developed along with writing.
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6 |
5279.999986 feet into the mile run
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11,400 years ago
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Domestication and agriculture is developed.
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7 |
5278 feet into the mile run
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1.7 million years
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Homo erectus move out of Africa.
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8 |
5277.7 feet into the mile run
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2 million years
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Tool making humanoids emerge. Stone age begins
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9 |
5273.1 feet into the mile run
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6 million years
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Forests turn into grasslands. First upright hominins appear.
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10 |
5240 feet into the mile run
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34 million years |

Earth begins to cool, leaving permanent ice sheets in Antarctica.
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11 |
5228.3 feet into the mile run
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45 million years |

Rhinoceros, camels and early horses appear.
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12 |
5207.7 feet into the mile run
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63 million years |

Flowering plants become widespread. Social insects achieve ecological dominance. Placental mammals appear (marsupials, insectivores, lemuroids and creodonts).
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13 |
5204.7 feet into the mile run
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65.5 million years |
A massive asteroid collides into the Earth at the present day Gulf of Mexico. The disastrous results of the collision (earthquakes, tsunamis, etc.) proceeded to kill 80-90% of marine species and 85% of land species, including all the dinosaurs.
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14 |
5113 feet into the mile run
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145.5 million years |

Jurassic Period ends. Cretaceous Period begins. Period of active crust plate movement.
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15 |
5050.9 feet into the mile run
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199.6 million years |

Triassic Period ends. Jurassic Period begins. There is no more polar ice and the Earth is warm. Carnivorous and herbivorous dinosaurs dominate the land. Flying reptiles appear.
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16 |
4991.9 feet into the mile.
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251 million years
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Permian period ends. Mesozoic era begins. Triassic period begins. Break up of super continent Pangea begins. First small dinosaurs appear. Meteor impact in Canada 100km crater.
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17 |
4936.8 feet into the mile.
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299 million years
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Carboniferous period ends. Permian period begins. Super continent Pangea forms. Sail backed synapsids appear. End of karoo ice age.
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18 |
4867.7 feet into the mile run.
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359.2 million years |

Devonian period ends. Carboniferous period begins.First winged insects appear. Large primitive trees appear. Vertebrates appear on land.
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19 |
4849.6 feet into the mile run
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375 million years
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Vertebrates with legs first appear. First amphibians appear. Mass extinction of 70% of marine species.
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20 |
4802.5 feet into the mile run
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416 million years
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Silurian Period ends. Devonian Period begins. First seed bearing plants appear. First forests begin to form. Wingless insects appear on land.
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21 |
4770. 7 feet into the mile run
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443.7 million years |

The Ordovician Period ends. The Silurian Period begins. First coral reefs appear. Fish develop jaws (e.g. sharks). Insects (spiders, centipedes, etc.) become present on land.
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22 |
4719.5 feet into the mile run
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488.3 million years |

Cambrian Period ends. Ordovician Period begins. First vertebrates appear in the ocean. First plants and fungi appear on land. Diversities of marine invertebrates become more common. Carbon dioxide concentration in the atmosphere drops.
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23 |
4657.9 feet into the mile
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542 million years |

The Cambrian Period begins. An abundance of multicellular organisms appears, along with most of the major groups of animals. Animals with shells also appear.
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24 |
4533.9 feet into the mile run
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650 million years
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Snowball Earth begins due to low concentrations of greenhouse gases like carbon dioxide and methane. Without greenhouse warming, global temperatures began to drop lower while glacial ice began to form. The sheets of ice then also reflected solar heat due to their white coloring, thus decreasing the amount of heat within Earth's atmosphere and lowering the temperature even more. The Earth was then completely covered in glacial ice.
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25 |
4419.1 feet into the mile
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750 million years
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The supercontinent Rodinia breaks apart and forms the supercontinent Pannotia.
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26 |
4132.2 feet into the mile run
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1000 million years |
First multicellular organisms appear.
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27 |
2410.4 feet into the mile run |
2,500 million years |

First free oxygen appears in Earth's oceans and atmosphere.
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28 |
1262.4 feet into the mile run
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3,500 millions years |
Oxygen-producing cyano-bacteria called stromatolites appear.
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29 |
172.2 feet into the mile run |
4,450 million years ago
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Planetoid collides with Earth. Detached chunk of Earth formed the Moon.
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30 |
At the starting line of the mile run (0 feet)
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4,600 million years |
4
The Earth formed as a result of the condensation of clouds of dust and gas left over from the creation of the Sun.
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