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Life History Event Timeline

APES LIFE HISTORY ANALOGY If all of life's history (3.7 billion years) were the seconds in a school day, then the following events would happen at


 Event #  Your Analogy Value Years Ago 
1 25,200 seconds into a school day 0
Description of Events that Affected Life on Earth. Also Include Picture or Videos.


Now is an interesting time to live.  It seems we have so many decisions to make and problems to solve, but life is flourishing on our planet right at this moment.  Conditions are right for life.

 Event #  Your Analogy Value Years Ago 
 2 25,199.999931 seconds into a school day 10
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

The Twin Towers in New York are attacked by terrorists on September 11, 2001. 2,974 people are killed.

 Event #  Your Analogy Value Years Ago 
 3 25,199.9998 seconds into a school day 16
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

I am brought into the world by my mom. 

 Event #  Your Analogy Value Years Ago 
 4 25,199.998 seconds into a school day 180
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


Space travel begins. Man takes his first steps on the moon.

 Event #  Your Analogy Value Years Ago 
 5 25,199.9982 seconds into a school day 250
            
Invention of the wheel and writing.

The Industrial Revolution begins. Changes occurred in agriculture, textile and metal manufacture, transportation and more.

 Event #  Your Analogy Value Years Ago 
6 25,199.9965 seconds into a school day 506
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
Columbus sailed on this three ships and landed in the New World.

 Columbus sailed on this three ships and landed in the New World.

 Event #  Your Analogy Value Years Ago 
7 25,199.984 seconds into a school day 2,230
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

 
Archimedes advances mathematics. With a physical insight, he makes fundamental discoveries in several fields

 Event #  Your Analogy Value Years Ago 
8 25,199.97 seconds into a school day 3,300
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
The Iron age, which is the archaeological
period generally occurring after the Bronze Age, marked by the prevalent use of iron, begins.

 Event #  Your Analogy Value Years Ago 
9 25,199. 969 seconds into a school day 4,500
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
The Pyramid of Giza is discovered. This pyramid is the oldest and largest of the three
pyramids in the Giza Necropolis.

 Event #  Your Analogy Value Years Ago 
10 25,199. 9625 seconds into a school day 5,500
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
The wheel is invented. It was made of planks of wood joined together, and continued progessing until it became the wheel we know today.

 Event #  Your Analogy Value Years Ago 
11 25,199. 938 seconds into a school day 9,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 Metal smelting begins. Its main use is to produce a metal from its ore including iron extraction from iron ore, and copper extraction and others.

 Event #  Your Analogy Value Years Ago 
12 25,199. 92 seconds into a school day 11,400
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 End of Würm/Wisconsin glacial period. Sea level rises by 91 meters.

 Event #  Your Analogy Value Years Ago 
13 25,199.870595 seconds into a school day 19,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


Arctic sea ice begins melting.

 Event #  Your Analogy Value Years Ago 
14 25,199. 819514 seconds into a school day 26,500
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Lake Taupo is created in a caldera by the eruption of a supervolcano 

 Event #  Your Analogy Value Years Ago 
15 25,199. 727757 seconds into a school day 40,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


 The first Cro-Magnon man appeared in Europe. Cro-Magnons were robustly built and powerful, the body was heavy and solid with strong musculature. Forehead was straight with slight browridges and large forehead; they were the first humans to have a prominent chin. Adult males would often reach 6’3”

 Event #  Your Analogy Value Years Ago 
16 25,199. 686703 seconds into a school day 46,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


Australia becomes arid and bush fires destroy habitat. Megafauna, very large animals, begin to die off. 

 Event #  Your Analogy Value Years Ago 
17 25,199. 496 seconds into a school day 74,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Toba volcano erupts and is a massive, climate-changing event. It is believed to be the largest explosive eruption anywhere on Earth in the last 25 million year

 Event #  Your Analogy Value Years Ago 
18 25,199. 45514 seconds into a school day 80,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
            
Non-African humans interbreed with Neanderthals
 Event #  Your Analogy Value Years Ago 
19 25,199.14865 seconds into a school day 125,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

  Eemian stage or Riss/Würm interglacial period. Hardwood forests grew above the Arctic Circle. Melting ice sheets increased sea level by 6 meters

 Event #  Your Analogy Value Years Ago 
20 25, 198. 910270 seconds into a school day 160,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Homo sapiens first appear. Known to have very similar brain capactiy to modern humans. The main difference between the homo sapiens and modern humans, are their lack of a prominent chin and having a thick skull.

 Event #  Your Analogy Value Years Ago 
21 25,198. 6379 seconds into a school day 200,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

Illinoian stage begins when sediments compromising the Illinoian Glacial Lobe were depositied. 

 Event #  Your Analogy Value Years Ago 
22 25,198.43352 230,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
 The Neanderthals are widely spread through Europe and the Middle East, and they thrive for an extremely long period. Bones of animals of all sizes, up to bison and mammoth, and sophisticated stone tools are found with their remains.

 Event #  Your Analogy Value Years Ago 
23 25,197. 2757 seconds into a school day 400,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


Hominids begin to hunt with wooden spear and begin using stone cutting tools. 

 Event #  Your Analogy Value Years Ago 
24 25,196. 390271 seconds into a school day 530,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Development of speech begins in Homo Heidelbergensis

 Event #  Your Analogy Value Years Ago 
25 25,195.9136 seconds into a school day 600,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Age of Homo Erectus fossils from Ethiopia.This indicates that this human ancestor was a single species scattered widely throughout Asia, Europe and Africa, not two separate species as some thought.   

 Event #  Your Analogy Value Years Ago 
26 25,195. 641081 seconds into a school day 640,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Yellowstone supervolcanic eruption occurs. The three super eruptions occurred 2.1 million, 1.3 million, and 640000 years ago, forming the Island Park Caldera, the Henry's Fork Caldera, and Yellowstone Caldera.

 Event #  Your Analogy Value Years Ago 
27 25,195.3865 seconds into a school day 680,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Günz/Nebraskan glacial period. This period is one of the earliest recognized divisions that reflected the importance of repeated Pleistocene glacial episodes

 Event #  Your Analogy Value Years Ago 
28 25,195.2325 seconds into a school day 700,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 Human and Neanderthal lineages start to diverge genetically.

 Event #  Your Analogy Value Years Ago 
29 25,191. 146 seconds into a school day 1,300,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
The Sherwin glaciers form.The Sherwin glaciers were the largest, filling Yosemite and other valleys, while later stages produced much smaller glaciers. Large Mammals and birds come to existence.

 Event #  Your Analogy Value Years Ago 
30 25,186. 379 seconds into a school day 2,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Pleistocene Ice Age begins. The most recent episode of glaciation, The Pleistocene is the first epoch of the Quaternary Period or 6th epoch of the Cenozoic Era

 Event #  Your Analogy Value Years Ago 
31 25,183.6540 seconds into a school day 2,100,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


First eruption of Yellowstone supervolcano. (Refer to event #26)

 Event #  Your Analogy Value Years Ago 
32 25,179.567 seconds into the school day 2,400,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Homo habilis appeared. the earliest known species of the genus Homo until May 2010, when H. gautengensis was discovered, a species believed to be even older than H. habilis. In its appearance, Homo habilis, looked the least similar to modern humans.

 Event #  Your Analogy Value Years Ago 
33 25, 179.5675 seconds into the school day 3,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
 The arctic ice cap is formed, the poles begin to accumulate ice and the climate becomes cooler and drier. The spread of grassland and Savannas begin and the rise of long-legged grazing animals.

 Event #  Your Analogy Value Years Ago 
34 25,174.8 seconds into the school day 3,700,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


Australopithecus hominids inhabit Eastern and Northern Africa

 Event #  Your Analogy Value Years Ago 
35 25, 173.4378 seconds into the school day 3,900,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


First appearance of Australopithecus, genus of hominids. They shared several traits with modern apes and humans.

 Event #  Your Analogy Value Years Ago 
36 25, 172. 7567 seconds into the school day 4,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

  North and South America join at the Isthmus of Panama, animals and plants are able to start crossing the new land bridge. Ocean currents begin to change in the newly isolated Atlantic Ocean

 Event #  Your Analogy Value Years Ago 
37 25, 159.135 seconds into the school day 6,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Upright walking (bipedal) hominins appear. Types of bipedal movement include walking, running, or hopping, on two appendages

 Event #  Your Analogy Value Years Ago 
38 25, 104. 648 seconds into the school day 14,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

  Antarctica separates from Australia and South America circum-polar ocean circulation builds up Antarctic ice cap. Earth begins to warm up at a steady pace. The earths first raccoons appear, and forests give way to grasslands.

 Event #  Your Analogy Value Years Ago 
39 25, 043. 14702 seconds into the school day 23,030,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

   African-Arabian plate joined to Asia

 Event #  Your Analogy Value Years Ago 
40 24, 957.5351 seconds into the school day 35,600,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Meteor impacts, 90 and 100 km craters Chesapeake Bay, Virginia, USA, and Popigai, Russia

 Event #  Your Analogy Value Years Ago 
41 24,770.9189 seconds into the school day 63,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
End of Deccan Traps volcanic eruptions in India. First appearance of placental mammals such as marsupials, insectivores, lemuroids, and creodonts. Flowering plants become widespread.

 Event #  Your Analogy Value Years Ago 
42 24,450. 810 seconds into the school day 110,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 

Crocodiles first appeared, and South America breaks away from Africa.            
The Atlantic Ocean forms. Earth has no polar ice and modern mammals and birds develop.

 Event #  Your Analogy Value Years Ago 
43 22,816. 216 seconds into the school day 350,000,000
Description of Events that Affected life on Earth. Also Include Picture or Videos. 
 

 
 The Karoo ice age begins and Large primitive trees develop. Oxygen levels begin to increase, vertebrates appear on land, first winged insects appear, and animals laying amniote eggs appear. At this time the seas covered parts of the continents.

 Event #  Your Analogy Value Years Ago 
44 21,726.486436 seconds into the school day 510,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
Oldest fossil fish.

 Event #  Your Analogy Value Years Ago 
45 20,772. 97297 seconds into the school day 650,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

 Mass extinction of 70% of dominant sea plants due to global glaciation ("Snowball Earth")

 Event #  Your Analogy Value Years Ago 
46 19,070.27 seconds into the school day 900,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
             Earth day is 18 hours long, and the Moon is 350,000 km from Earth. Oldest Metazoan Fossils.

 Event #  Your Analogy Value Years Ago 
47 18,729.729 seconds into the day 950,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

  Glacial strata from several intervals during this time are well preserved in Africa, China, Australia, Europe, Arabia, North America, and elsewhere

 Event #  Your Analogy Value Years Ago 
48 18,389.189 seconds into the school day 1,000,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 


Multicellular organsisms first appear.

 Event #  Your Analogy Value Years Ago 
49 11,578. 378 seconds into the school day 2,000,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 
The first oxygen atmosphere ozone layer forms

 Event #  Your Analogy Value Years Ago 
50 0 seconds into the schoold day 3,700,000,000
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

Heterotrophic, anaerobic, prokaryotes show up in the fossil record. The rounded rocks in the picture are stromatolite heads colonies of bacteria from over 3 billion years ago.