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Planet Stamp Series 3: Earth by Sleepstar Planet Stamp Series 3: Earth by Sleepstar
A Stamp for our home planet, Earth. Some facts:
Third Planet from the Sun
Only planet not named after a Greek or Roman God
Only planet known to harbour life
Has one natural satellite, the Moon
There are 200+ countries on Earth
Average surface temperature is 15 degrees centigrade. 
Has one Trojan, 2010 TK7
71% of Earth's surface is covered in water
99% of species that ever lived on Earth are Extinct

Major events in Earth's history: 4.6 Billion Years Ago, Earth Formed. Moon formed sometime after, in a collision between the young Earth and Protoplanet "Theia"
4.1 Billion Years Ago: Life may have appeared
Between 4:1 Billion Years Ago and 800 Million Years Ago: Water appeared. Rodinia, the earliest known Super continent, is formed. Earth's Magnetic Field is formed 
800 Million Years Ago: The Cambrian Explosion. Amongst the species that emerged included Trilobites. 
During the Silurian period, life begins to colonise land.
Devonian Period: Several aquatic creatures move onto land
Permian Period: 99% of life becomes extinct. Trilobites become extinct.
Triassic Era saw the appearance of Dinosaurs
Jurassic Period: Birds and Mammals appear
65 Million Years Ago: Dinosaurs become extinct 
2 Million Years Ago: Humans first appear.
8000 BC: First City.
200 BC: First appearance of Halley's Comet
A:D 1400-1700: Age of Exploration
A:D 1900: The Heroic Era of Polar Exploration. 
A:D 1903: Man takes to the skies for the first time
A:D 1914-1918: World War 1
A:D 1929: The Great Depression
A:D 1939-1945: World War 2. First use of Nuclear Weapons
A:D 1957: Sputnik 1 is launched by the Soviet Union, kick starting the Space Race.
A:D 1961: A pilot from the Soviet Union becomes the first person to enter Space on April 12th.
A:D 1963: Woman enters Space for the first time. President John. F. Kennedy Assassinated 
A:D 1965: First Spacewalk by Alexei Leonov of the Soviet Union (March 18th). First sandwich in Space. First Space Rendezvous between Gemini 6 and 7
A:D 1966: First Space Docking achieved by the Gemini 8 mission. First Space Selfie.
A:D 1968: First Manned Flyby of the Moon by Apollo 8. Year of Protests
A:D 1969: First Manned Lunar Landing by Apollo 11. 
A:D 1971: After a near disaster with Apollo 13, the Moon Landing programme is resumed with Apollo 14. The mission is best known for Lunar Golf, as well as the trees. First car on Moon during Apollo 15. First Deep Space EVA. First Space Station launched by the Soviet Union. Only known deaths outside Earth's atmosphere during Soyuz 11.
A:D 1972: Last Manned Moon Landing during Apollo 17. Only time a Scientist was on the Moon.
A:D 1975: The Apollo-Soyuz Test Project occurs. End of the Space Race.
A:D 1991: The World Wide Web appears. Start of the Internet Age.
A:D 2007: The Boston Marathon is run in Space
A:D 2008: The Recession occurs.
A:D 2015-2016: Two men spend a year in Space. Their mission was Expeditions 43 44 45 and 46.
A:D 2015: New Horizons fly by Pluto. 
A:D 2016: The London Marathon is run in Space on the "Principia" mission. Brexit happens. Trump elected President. The Internet names a research ship "Boaty McBoatface". First Solar Powered probe to the Outer Planets. 
A:D 2017: The Cassini Space Probe is expected to plunge into Saturn.

Stamp Base by Quarksbar
Earth symbol on this stamp drawn by me. 
:icontsisqua-ugidali:
Tsisqua-Ugidali Featured By Owner Mar 2, 2017  Professional Photographer
Excellent information provided.  I like the stamp, may I use it to put on my profile page for others to see?   Please advise.
Reply
:iconsleepstar:
Sleepstar Featured By Owner Mar 2, 2017  Hobbyist Writer
Go ahead.
Reply
:icontsisqua-ugidali:
Tsisqua-Ugidali Featured By Owner Mar 2, 2017  Professional Photographer
Thank you
Reply
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