Earth Day was created in 1970. The United States-wide observance was proposed by Senator Gaylord Nelson and occurred on April 22, 1970, with the name coined by ad copywriter Julian Koenig. Independent organizers and early supporters, including John McConnell’s globe-centered concept, helped shape the broader international recognition that followed, and Earth Day is now celebrated in many countries around the world. For a quick timeline: first Earth Day in the U.S. on April 22, 1970; EPA established later in 1970; later global expansion into a worldwide environmental movement. If you’d like, I can pull a succinct, cited timeline or highlight key milestones.[1][3][4][6][8]
Sources
Celebrate Earth Day with these tips for helping our environment.
kids.nationalgeographic.comAcknowledging 55 years, EARTHDAY.ORG highlights global impact, renewable energy goals, climate education advocacy, and actions like cleanups and tree planting.
www.earthday.orgSiskiyou National Forest in California; detail of a DOCUMERICA image. (National Archives ID 542848) The first Earth Day took place on April 22, 1970. Recognized by many as the birth of the U.S. environmental movement, the nationwide demonstration spurred a dramatic rise in public concern about environmental issues.
www.archives.govThe worldwide event aims to raise awareness about the need to protect the environment.
www.bbc.comVisit the official Earth Day site to learn about the world's largest environmental movement and what you can do to make every day Earth Day.
www.earthday.orgGaylord Nelson, the late U.S. senator and governor of Wisconsin, is considered the founder of Earth Day, which started in 1970.
www.cbsnews.comWhat do the campaigners behind Earth Day want to achieve and how did the decades-old event come about? Sky News looks at why and how the day is marked.
news.sky.comWhat do the campaigners behind Earth Day want to achieve and how did the decades-old event come about? Sky News looks at why and how the day is marked.
news.sky.comThe General Assembly designated 22 April as International Mother Earth Day through a resolution adopted in 2009, but the roots of the Day go back to the 1970s.
www.un.org