Born on April 22

Earth Day

One planet. Look after it.

Next: April 22, 2027

Where it comes from

Earth Day began in the United States on 22 April 1970. Senator Gaylord Nelson of Wisconsin, shaken by a huge oil spill off Santa Barbara, California, in 1969, called for teach-ins on the environment at universities and recruited the young activist Denis Hayes to organise them.

How it's celebrated

People plant trees, clean up beaches, parks and rivers, join citizen-science counts and hold talks and teach-ins in schools and universities. EARTHDAY.ORG, the organisation that grew out of the first Earth Day, coordinates events around the world, and the UN marks the day with a dialogue on living in harmony with…

Did you know

The organisers chose 22 April because it was a weekday between American students' spring break and their final exams.

Read the full story of Earth Day

Star sign

Taurus · April 20 – May 20 · Earth sign

Steady and loyal, with a weakness for good food and comfortable things.

What's your World Day?

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