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Timeline: Earth Day
1969: U.S. Senator Gaylord Nelson of Wisconsin announces a nationwide environmental awareness gathering.
1970: The First Earth Day is observed on April 22nd. President Richard Nixon creates EPA with a mission to protect the environment and public health.
1972: Congress passes the Clean Water Act, limiting raw sewage and other pollutants flowing into rivers, lakes, and streams.

en.wikipedia.org/wiki/Earth_Day

Date, April 22. Next time, 22 April 2018 (2018-04-22). Frequency, annual. Earth Day is an annual event celebrated on April 22. Worldwide, various events are held to ...

www.earthday.org/about/the-history-of-earth-day

April 22, falling between Spring Break and Final Exams, was selected as the date . On April 22,1970, 20 million Americans took to the streets, parks, and ...

www.almanac.com/content/when-earth-day

Earth Day 2017 dates and history from The Old Farmers Almanac.

earthsky.org/earth/this-date-in-science-why-celebrate-earth-day-on-april-22

Apr 22, 2016 ... April 22 continues to be the larger event, however, and the official date of Earth Day. Some say April 22 was chosen to maximize the number of ...

www.timeanddate.com/holidays/un/earth-day

Earth Day is a name used for two similar global observances. While some people celebrate Earth Day around the time of the March Equinox, others observe the ...

www.calendarpedia.com/when-is/earth-day.html

Dates of Earth Day in 2018, 2019 and beyond, plus further information about Earth Day.

www.mirror.co.uk/science/happy-earth-day-2017-what-10268507

Apr 22, 2017 ... Today marks Earth Day 2017, the day of the year when more than one billion of us celebrate our planet. ... When is Earth Day? Earth Day is celebrated on April 22 every year. ..... Date, time and how to watch it LIVE in the UK.

www.history.com/topics/holidays/earth-day

Founded in 1970 as a day of education about environmental issues, Earth Day is now a globally celebrated holiday that is sometimes extended into Earth Week, ...

www.primarygames.com/holidays/earth_day/when_is_earthday.php

Need to know the exact date of Earth Day this year? Earth Day is celebrated around the world on April 22. Some cities start celebrating a week in advance, ...