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By the early 20th century, the federal government held significant portions of most western states that had simply not been claimed for any use. Conservationists prevailed upon President Theodore Roosevelt to set aside lands for forest conservation and for special scientific or natural history interest. Much land still remained unclaimed even ...
Both conservationists and preservationists appeared in political debates during the Progressive Era (the 1890s–early 1920s). There were three main positions. There were three main positions. Laissez-faire: The laissez-faire position held that owners of private property, including lumber and mining companies, should be allowed to do anything ...
1920, British Museum Research Laboratory established under the direction of Alexander Scott as a direct response to the poor state of the museum's collections. 1920s, George T. Oliver of Oliver Brothers Fine Art Restoration, Boston [2] has invented world's first vacuum table for re-lining
John Muir was one of the founding fathers of the preservation movement in the United States in the late 19th century. He believed that nature had intrinsic value and viewed nature as a sacred religious temple, which opposed the view of many utilitarian conservationists. One of Muir’s first endeavors was helping create Yosemite National Park.
This timeline of the history of environmentalism is a listing of events that have shaped humanity's perspective on the environment. This timeline includes human induced disasters, environmentalists that have had a positive influence, and environmental legislation .
Environmental health movement dating at least to Progressive Era (the 1890s - 1920s) urban reforms including clean water supply, more efficient removal of raw sewage and reduction in crowded and unsanitary living conditions. Today Environmental health is more related to nutrition, preventive medicine, ageing well and other concerns specific to ...
1920s: The Spanish Flu. In the fall of 1918, a mutated version of the virus that claimed its first victims in the spring made its way around the world, causing the death rate to escalate quickly ...
1920s portal; These articles relate to the natural environment in the decade 1920s. They include the human impact on the environment, environmental law, conservation, environmentalism and environmental issues.