Practice modes
Languages & Literature
Pakistan
World & History
Promotes protection of the environment; the Paris Agreement was signed on Earth Day 2016.
Started in the USA in 1970 by Senator Gaylord Nelson, when about 20 million Americans joined events for the environment. The UN named it International Mother Earth Day in 2009. It is now marked in more than 190 countries.
United Nations (first held in the USA in 1970)