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Trevor and Riley's Timeline
Project Name : Trevor and Riley's Timeline
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Geological Timeline
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Life History Event Timeline

If all of life's history were the length of the United States from east to west, or the distance from Los Angeles, California to Calais, Maine (3,300 miles) then the following events would happen at (rounded to the nearest mile):


 Event #  Your Analogy Value Years Ago 
1 3,300 miles from Los Angeles 0
Description of Events that Affected Life on Earth. Also Include Picture or Videos.

After billions of years, humans now live on Earth.

 Event #  Your Analogy Value Years Ago 
 2  3,299.999 miles from Los Angeles  17
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

I was brought into the world by my mother.

 Event #  Your Analogy Value Years Ago 
 3  3,299.999 miles from Los Angeles 1,500 years ago
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

A land bridge appears between Alaska and Siberia which allows humans to migrate to America.

 Event #  Your Analogy Value Years Ago 
 4  3,299.885 miles from Los Angeles 160,000 years ago
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Homo sapiens start to appear.

 Event #  Your Analogy Value Years Ago 
 5 3,298.5 miles from Calais 2.1 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

In Yellowstone, a super volcano erupts.

 Event #  Your Analogy Value Years Ago 
6 3,297 miles from Los Angeles 4 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

North and South America join together at the Isthmus of Panama, which allows animals and plantgs to cross the new land bridge.

 Event #  Your Analogy Value Years Ago 
7 3,280 miles from Los Angeles 27.8 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

In La Garita, Colorado there was a super volcano eruption.

 Event #  Your Analogy Value Years Ago 
8 3,267 miles from Los Angeles 45 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Modern mammals appear.

 Event #  Your Analogy Value Years Ago 
9 3,253 miles from Los Angleles 65.5 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

There was a mas extinction of 80%-90% of marine species and 85% of land species.

 Event #  Your Analogy Value Years Ago 
10 3,225 miles from Los Angeles 105 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Modern mammals and birds begin to develop. 

 Event #  Your Analogy Value Years Ago 
11 3,221 miles from Los Angeles 110 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Crocodiles start to appear.

 Event #  Your Analogy Value Years Ago 
12 3,167 miles from Los Angeles
185 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Flying reptiles appear.

 Event #  Your Analogy Value Years Ago 
13 3,156 from From Los Angeles 201 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

A mass extincion that was caused by oceanic anoxic event that killed 20% of all marine families.

 Event #  Your Analogy Value Years Ago 
14 3,129 miles from Los Angeles 240 mya
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Sea urchins called Arkarua appear.

 Event #  Your Analogy Value Years Ago 
15 222 miles from Calais 310 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


The first reptiles appear on the earth.

 Event #  Your Analogy Value Years Ago 
16 268  miles from Calais
374 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

A mass extinction occurred over a period of 20 million years due to total depletion of oxygen levels in the bottom of the ocean and global cooling. 70% of marine species were wiped out.

 Event #  Your Analogy Value Years Ago 
17 269 miles from Calais
375 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Vertebrates with legs first appear on Earth, and the first amphibians appear.

 Event #  Your Analogy Value Years Ago 
18 295 miles from Calais
411 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


The first fish with jaws, or sharks, appear on the earth.

 Event #  Your Analogy Value Years Ago 
19 318 miles from Calais 443 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The second largest mass extinction event occurs, wiping out 49% of genera and fauna species. This mass extinction is known as the Glaciation of Godwana.

 Event #  Your Analogy Value Years Ago 
20 416 miles from Calais
580 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Soft-bodied organisms, such as jellyfish, develop and appear.

 Event #  Your Analogy Value Years Ago 
21 466 miles from Calais
650 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


A mass extinction on Earth occurs due global glaciation. This global glaciation is often referred to as "Snowball Earth" due to the enormous amounts of ice and snow that covered the Earth's surface from pole to pole. Because of this snow and ice, 70% of dominant sea plants were wiped out.

 Event #  Your Analogy Value Years Ago 
22 717 miles from Calais
1,000 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The first multicellular organisms appear on Earth.
 Event #  Your Analogy Value Years Ago 
23 861 miles from Calais 1,200 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The first gamete formation occurs, indicating the first sexual reproduction on Earth occurred!

 Event #  Your Analogy Value Years Ago 
24 1,076 miles from Calais
1,500 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The first eukaryotic cells appear on the earth.

 Event #  Your Analogy Value Years Ago 
25 1,578 miles from Calais 2,200 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

 
The first organisms that are capable of aerobic respiration appear.(First mitochondria appear in organisms.)

 Event #  Your Analogy Value Years Ago 
26 1,793 miles from Calais 2,500 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Oxygen begins to appear on Earth, accumulating initially in oceans and the atmosphere.

 Event #  Your Analogy Value Years Ago 
27 2,511 miles from Calais 3,500 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


The existence of unicellular prokaryotes begins. One of these unicellular prokaryotic organisms, cyanobacteria, is the first known oxygen producing bacteria.

 Event #  Your Analogy Value Years Ago 
28 2,726 miles from Calais 3,800 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The surface of the earth changed from molten rock to primarily solid, igneous rock.
 Event #  Your Analogy Value Years Ago 
29 2,798 miles from Calais 3,900 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The first carbon minerals begin to form, causing the amount of carbon dioxide initially in the atmosphere to decrease.
 Event #  Your Analogy Value Years Ago 
30 3,300/3228 miles from Calais
4,600/4,500 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


The formation of the earth occurs.