The heads of millions of U.S. households, the Baby Boom ,have long led the green movement through the values and attitudes they have instilled upon society and have imparted to their children and grandchildren. Born between 1946 and 1964 ,and ranging in age from 46 to 64 in 2010, the oldest Boomers, as college students and young adults, led the anti-Vietnam war, anti-big business, and pro-environment activist movements of the late 1960s and early 1970s. The brainchild of the then senator Gaylord Nelson, Earth Day was first celebrated by the Baby Boomers in 1970 followed by the first Solar Day in 1971. Their demonstrations of concern gave rise to the National Protection Agency in 1970, the clean Air and the Clean water Acts that same year, and the Endangered Species Act of 1973.