[DOC] [TLE] The History of Earth Day | Earth Day Network [PAR] Each year, Earth DayApril 22marks the anniversary of the birth of the modern 
... The height of counterculture in the United States, 1970 brought the death of 
Jimi ... War raged in Vietnam and students nationwide overwhelmingly opposed it
. At the time, Americans were slurping leaded gas through massive V8 sedans. [DOC] [TLE] The first Earth Day - Apr 22, 1970 - HISTORY.com [PAR] On this day in History, The first Earth Day on Apr 22, 1970. ... of the world's 
environmental problems, is celebrated in the United States for the first time. ... 
The objective was to get a nationwide demonstration of concern for the 
environment so... [DOC] [TLE] Earth Day - Wikipedia [PAR] Earth Day is an annual event, celebrated on April 22, on which day events ... [DOC] [TLE] Today in History - April 22 | Library of Congress [PAR] Earth Day was first observed on April 22, 1970, when an estimated 20 million 
people nationwide attended the inaugural event. Senator Gaylord Nelson... [DOC] [TLE] Earth Day first observed in Seattle on April 22, 1970. - HistoryLink.org [PAR] Jan 1, 2000 ... On April 22, 1970, the first Earth Day, a nationwide program to spend one day ... 
is observed in Seattle with teach-ins at the University of Washington and at the 
Seattle Center. ... Sources: The Seattle Times, April 23, 1970, p. [DOC] [TLE] April 22, 1970: Earth Day Is Celebrated For the First Time | The Nation [PAR] Apr 22, 2015 ... For the time, as every new crisis lets us know, is later than we think. April 22, 
1970 To mark The Nation's 150th anniversary, every morning this... [DOC] [TLE] Earth Day 2016: History of Earth Day [PAR] on April 22, 1970, Earth Day was held, one of the most ... How the First Earth Day 
Came About ... At the time, anti-Vietnam War demonstrations, called "teach-ins," 
had spread to ... At a conference in Seattle in September 1969, I announced that 
in the spring of 1970 there would be a nationwide grassroots demonstration on... [DOC] [TLE] April 22, 1970 - Gaylord Nelson and Earth Day [PAR] Apr 22, 1970 ... Gaylord Nelson speaking on Earth Day April 22, 1970 in Denver, Colorado ... Its 
grassroots nature, spurred by Gaylord Nelson's wish for Americans to observe it "
in any way ... Each Earth Day event nationwide was some combination of festival, 
... Link to NY Times online PDF news story of the first Earth Day. [DOC] [TLE] Why Is Earth Day on April 22? : snopes.com [PAR] Apr 22, 2015 ... Rumor: The date of Earth Day was chosen as April 22 by 'Unicorn Killer' ... 
Origins: Earth Day is an annual event celebrated since 1970 on April 22, a day 
on which ... Within a few months the Earth Day idea had become a nationwide ... 
in San Francisco, a day to be observed on the first day of spring in the... [DOC] [TLE] The History of Earth Day -- In Less Than 5 Minutes - Triple Pundit [PAR] Apr 17, 2015 ... ... Americans took part in the first Earth Day, observed across the country on April 
22, 1970. The event was a long time coming: In the shadow of the Vietnam War, 
... At a public event in Seattle, he announced that a nationwide... [DOC] [TLE] Earth Day Facts - TheHolidaySpot [PAR] Earth Day was first observed on April 22, 1970 in Wisconsin. An estimated 20 
million people nationwide attended the inaugural event. Earth Day was 
conceived by by ... It was published for the first time in October 25, 1969. Earth 
Day is now... [DOC] [TLE] Lamium by Louise Gluck | The Writer's Almanac with Garrison Keillor [PAR] Apr 22, 2011 ... It was first observed in 1970, but its roots go back to the 1962 ... Twenty million 
people nationwide participated in the first Earth Day, on April 22, 1970, and ... 
The year 2000 marked the first time the event was coordinated on... [DOC]

Question: It was observed nationwide for the first time April 22, 1970
Answer: Earth Day