Earth Day!

Today is Earth Day.  To me Earth Day is just a day that people celebrate the earth and participate in different activities that have to do with Earth Day.  Some interesting facts about Earth Day that I didn't know are:
1.)April 22 is the first official day of Spring in the Northern hemisphere and of Fall in the Southern hemisphere and was chosen to be Earth Day for this reason.
2.) It began in 1970 when 20 million people across the United States participated in rallies celebrating nature and decrying activities that put it at risk. 
3.) By 2010, Earth Day's 40th anniversary, more thatn 1 billion people in more than 180 countries around the world were estimated to have celebrated, whether by attending events or simply spreading the word on Facebook.
To celebrate this day people should go out and do stuff to help the earth as far as clean up or plant stuff.