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Cosmic Calendar (From The Dragons of Eden - Carl Sagan)

 

Pre-December Dates

Big Bang

January 1

Origin of Milky Way Galaxy

May 1

Origin of the solar system

September 9

Formation of the Earth

September 14

Origin of life on Earth

~ September 25

Formation of the oldest rocks known on Earth

October 2

Date of oldest fossils (bacteria and blue-green algae)

October 9

Invention of sex (by microorganisms)

~ November 1

Oldest fossil photosynthetic plants

November 12

Eukaryotes (first cells with nuclei) flourish

November 15

 

December

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

1

Significant oxygen atmosphere begins to develop on Earth.

2

3

4

5

Extensive vulcanism and channel formation on Mars.

6

7

 

8

9

10

11

12

13

14

 

15

16

First Worms.

17

Precambrian ends. Paleozoic Era and Cambrian Period begin. Invertebrates flourish.

18

First oceanic plankton. Trilobites flourish.

19

Ordovician Period. First fish, first vertebrates.

20

Silurian Period. First vascular plants. Plants begin colonization of land.

21

Devonian Period begins. First insects. Animals begin colonization of land.

 

22

First amphibians. First winged insects.

23

Carboniferous Period. First trees. First reptiles.

24

Permian Period begins. First dinosaurs.

25

Paleozoic Era ends. Mesozoic Era Begins.

26

Triassic Period. First mammals.

27

Jurassic Period. First birds.

28

Cretaceous Period. First flowers. Dinosaurs become extinct.

 

29

Mesozoic Era ends. Cenozoic Era and Tertiary Period begin. First cetaceans. First primates.

30

First evolution of frontal lobes in the brains of primates. First hominids. Giant mammals flourish.

31

End of Pliocene Period. Quaternary (Pleistocene and Holocene) Period. First humans.

 

 

December 31

Origin of Proconsul and Ramapithecus, probable ancestors of apes and men

~ 1:30 p.m.

First humans

~ 10:30 p.m.

Widespread use of stone tools

11:00 p.m.

Domestication of fire by Peking man

11:46 p.m.

Beginning of most recent glacial period

11:56 p.m.

Seafarers settle Australia

11:58 p.m.

Extensive cave painting in Europe

11:59 p.m.

Invention of agriculture

11:59:20 p.m.

Neolithic civilization; first cities

11:59:35 p.m.

First dynasties in Sumer, Ebla and Egypt; development of astronomy

11:59:50 p.m.

Invention of the alphabet; Akkadian Empire

11:59:51 p.m.

Hammurabic legal codes in Babylon; Middle Kingdom in Egypt

11:59:52 p.m.

Bronze metallurgy; Mycenaean culture; Trojan War; Olmec culture; invention of the compass

11:59:53 p.m.

Iron metallurgy; First Assyrian Empire; Kingdom of Israel; founding of Carthage by Phoenicia

11:59:54 p.m.

Asokan India; Ch'in Dynasty China; Periclean Athens; birth of Buddha

11:59:55 p.m.

Euclidean geometry; Archimedean physics; Ptolemaic astronomy; Roman Empire; birth of Christ

11:59:56 p.m.

Zero and decimals invented in Indian arithmetic; Rome falls; Moslem conquests

11:59:57 p.m.

Mayan civilization; Sung Dynasty China; Byzantine empire; Mongol invasion; Crusades

11:59:58 p.m.

Renaissance in Europe; voyages of discovery from Europe and from Ming Dynasty China; emergence of the experimental method in science

11:59:59 p.m.

Widespread development of science and technology; emergence of global culture; acquisition of the means of self-destruction of the human species; first steps in spacecraft planetary exploration and the search of extraterrestrial intelligence

Now: The first second of New Year's Day

 

Mirrored from http://www.hk.super.net/~paulchui/cosmic.html