George Perkins Marsh
George Perkins Marsh ( March 15 , 1801July 23 , 1882 ) , an American diplomat and philologist , is considered by some to be America's first environmentalist and by recognizing the irreversible impact of man's actions on the earth , a precursor to the sustainability concept , although "conservationist" would be more accurate . 
<triplet> George Perkins Marsh <subj> March 15, 1801 <obj> date of birth <subj> July 23, 1882 <obj> date of death