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Philadelphia Committee
Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution. -
Publish of Walden
Henry David Thoreau publishes Walden -
A new term is coined in German
The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel -
A term for acid rain is coined
The term acid rain is coined by Robert Angus Smith in the book Air and Rain -
A term called smog is coined
The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution -
The National Park Service is created
US Congress created the National Park Service -
The world's first artificial satellite
The first satellite named Sputnik 1 was launched by the USSR and was the first man-made object to leave the Earth's atmosphere. -
The First Creatures to return alive from space
Two monkeys were launched into space by the US on a Jupiter missile where both of the monkeys survived and came back. -
The first man in space
The USSR sent Yuri Gagarin into space in a Vostok spacecraft and he made a single orbit around the earth in 108 minutes. -
A book called Silent Spring is published
Rachel Carson publishes Silent Spring -
The first woman in space
A woman named Valentina Tershkova was launched into space by the Soviet Union and became the first woman to be launched into space and circled the Earth 49 times in 3 days. -
First ever spacewalk
A Russian cosmonaut named Alexi Leonov stepped into space and it was from the two-man Voskhod spacecraft. -
The Apollo 8 picture of Earthrise
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First man on the moon
An American named Neil Armstrong became the first man to set foot on the Moon and helped the US win the race to the Moon. -
First Earth Day – April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established
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The first space station is launched
Russia launched a space station called Salyut but later on the first crew that docked it ended up dying during re-entry due to air leaks. -
Free-flying in space
A man named Bruce McCandless became the first person to do a spacewalk without being attached to the spacecraft. He used a jet-propelled backpack to move around. -
Montreal Protocol on substances that deplete the ozone layer entered into force
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The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries commit to reduce their emissions of carbon dioxide
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Assembly of ISS
A big space station that is used for by many countries. -
U.S. rejects the Kyoto Protocol
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First space tourist
A billionaire businessman named Dennis Tito became the first paying passenger to go to outer space and paid $20m for his trip. -
U.S. announces it will cease participation in the Paris Agreement on climate change mitigation
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U.S. announces it will rejoin the Paris Agreement on climate change mitigation