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Arbor Daythe day set aside for the planting of trees, first celebrated 1872 in Nebraska, the brainchild of U.S. agriculturalist and journalist J. Sterling Morton (1832-1902). From Latin arbor "tree," [..]
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Arbor DayA day set apart in Canada and the United States for planting trees. (See Historic Note Book, p. 42.)
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Arbor Day
(US) The national day of observance of the need to protect trees, celebrated by planting a tree.
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