The birth of the holiday took place in the United States in 1840, when J. Sterling Morton moved to Nebraska. There, his eyes opened endless prairies with lonely trees. Morton and his wife planted trees and launched a greening campaign. Morton, later editor of the first newspaper in Nebraska, suggested that Nebraska citizens set a day to be dedicated to landscaping - a kind of Tree Day.

The idea met with universal support. During the first Tree Day, state residents planted about a million trees.
In 1882, Nebraska declared Tree Day an official holiday, celebrated on Morton's birthday, April 22. Since 1970, Earth Day has become a holiday dedicated to environmental protection and eco-education. The international holiday became in 1990. Already 200 million people from 141 countries participated in it.
Since the beginning of the 90s, Earth Day has acquired a new meaning, and with it a new name - Park March. Since 1995, Russian reserves and national parks have joined it. In 1997, the Park March covered almost the entire territory of the former USSR and was held in more than 150 parks in Ukraine, Belarus, Kazakhstan, Kyrgyzstan, Turkmenistan, Tajikistan and Uzbekistan.
“Thinking globally - acting locally” is a capacious and deep slogan of the holiday. On this day in all regions of Russia, a variety of events are held - from lectures to garbage collection. Many organizations do not specifically plan for this day, but organize their actions in the previous or next days.
These days help national parks and reserves feel themselves part of a single global system of protected natural areas. This is a way to attract people to participate in nature conservation activities of nature reserves, national parks and other protected natural areas, to provide them with real practical help, to awaken in the minds of compatriots a sense of pride in their national natural and cultural heritage.
Since 2013 SNNP «Altyn-Emel» has been actively conducting the March of Parks campaign.