events
The first Earth Day is celebrated.
Related Wikipedia articles
Earth Day
Annual international event on April 22
Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally through earthday.org including 1 billion people in more than 193 countries.Source: Wikipedia (CC BY-SA)
April 22
Day of the year
April 22 is the 112th day of the year in the Gregorian calendar; 253 days remain until the end of the year.Source: Wikipedia (CC BY-SA)