Thomas Jefferson commissioned Lewis and Clark’s expedition to search for a Northwest Passage to Asia. The expedition to the Pacific resulted in detailed environmental reports about the American West.
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A series of tests called “Operation Crossroads” are the first nuclear tests conducted by the United States after the Second World War.
Soon after the species arrive, their populations increase to plague proportions.
Constant protesting leads to a recall of the Victoria government’s plans.
Greece’s first national park, at Mount Olympus, the country’s highest mountain, is declared in 1938.
Sir Albert Howard, one of the pioneers of organic agriculture, publishes his work An Agricultural Testament.
With the construction of the multipurpose Hirakud Dam across the River Mahanadi in India, multipupose river valley projects emerge in India.
One of the largest fire disasters in Australian history, the 1939 bushfires devastate large parts of Victoria.
The American forestry scientist and wildlife researcher Aldo Leopold publishes his book A Sand County Almanac.
Charles Darwin describes the evolution of the species through natural selection.