Term
Date In Years Before Present:
4.56 Billion |
|
Definition
|
|
Term
Date In Years Before Present:
4.4 Billion |
|
Definition
Event:
Oldest Mineral Grain Found |
|
|
Term
Date In Years Before Present:
4.1 Billion |
|
Definition
Event:
Oldest Piece of Rock Ever Found |
|
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Term
Date IN Years Before Present:
3.9 Billion |
|
Definition
Event:
Oldest Evidence of a Continent |
|
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Term
Date In Years Before Present:
3.8 Billion |
|
Definition
Event:
First Evidence of Life |
|
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Term
Date In Years Before Present:
3.5 Billion |
|
Definition
Event:
First Fossils (algae and bacteria) |
|
|
Term
Date In Years Before Present:
1.8 Billion |
|
Definition
Event:
Free O2 in Atmosphere |
|
|
Term
Date In Years Before Present:
1.1 Billion |
|
Definition
Event:
First Fossil of a Complex Organism (a worm) |
|
|
Term
Date In Years Before Present:
540 Million |
|
Definition
Event:
First Abundant Life Found in the Rock Record |
|
|
Term
Date In Years Before Present:
460 Million |
|
Definition
|
|
Term
Date In Years Before Present:
440 Million |
|
Definition
|
|
Term
Date In Years Before Present:
410 Million |
|
Definition
|
|
Term
Date In Years Before Present:
250 Million |
|
Definition
Event:
Largest Mass Extinction |
|
|
Term
Date In Years Before Present:
247 Million |
|
Definition
|
|
Term
Date In Years Before Present:
240 Million |
|
Definition
|
|
Term
Date In Years Before Present:
220 Million |
|
Definition
Event:
Break-up of Super COntinent Pangaea Begins |
|
|
Term
Date In Years Before Present:
145 Million |
|
Definition
Event:
First Flowering Plants |
|
|
Term
Date In Years Before Present:
65 Million |
|
Definition
Event:
Dinosaurs and other Animals go Extinct |
|
|
Term
Date IN Years Before Present:
30 Million |
|
Definition
Event:
Mammals?Flowering Plants Become Abundant |
|
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Term
Date IN Years Before Present:
5 Million |
|
Definition
Event:
Beginning of Cascade Volcanic Arc |
|
|
Term
Date In Years Before Present:
1.8 Million |
|
Definition
Event:
First Primate in Genus Homo |
|
|
Term
Date In Years Before Present:
40 Thousand |
|
Definition
|
|
Term
Date In Years Before Present:
13 Thousand` |
|
Definition
Event:
Humans First Inhabit North America |
|
|
Term
Date In Years Before Present:
10 Thousand |
|
Definition
Event:
End of Last Ice Age |
|
|
Term
Date In Years Before Present:
8 Thousand |
|
Definition
Event:
Founding of Jericho, The First Known City |
|
|
Term
Date In Years Before Present:
2 Thousand |
|
Definition
Event:
Roman Domination of The World |
|
|
Term
Date In Years Before Present:
5 Hundred |
|
Definition
Event:
European Rediscovery of The Americas |
|
|
Term
Date In Years Before Present:
~34 |
|
Definition
Event:
Humans First Explore The Moon |
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