Friends of the Earth: A History of American Environmentalism with 21 Activities
TIME LINE 1690 William Penn requires settlers to preserve one acre of trees for every five acres cleared 1739 Benjamin Franklin petitions Pennsylvania Assembly to stop industries from dumping Waste 1827 First volume of Audubon's Birds of America is published 1845 Thoreau builds his cabin at Walden Pond 1 1849 Department of the Interior is created 1854 Thoreau's Walden is published 1868 John Muir first sees the Yosemite Valley
Henr a el 1890 Yosemite National Park is created 1891 The Forest Reserve Act is passed 1892 The Sierra Club is founded Cia 1898 Gifford Pinchot is named head of the Division of Forestry 1905 The National Audubon Society is founded Cordelia Stanwood begins her systematic obser vations of nesting birds 1910 Cordelia Stanwood begins publishing her nest ing bird studies
Cordelia 1934 Roger Tory Peterson creates his bird identifica tion system 1935 TheWildnernessSocietyisformed 1947 Marjory Stoneman Douglas's River of Grass is published Everglades National Park is created Marjory 1949 Aldo Leopold's Sand County Almanac is pub lished 1960 Arctic National Wildlife Reserve is created due to efforts by Mardie and Olaus Murie 1962 Rachel Carson's Silent Spring is published 1964 The Wilderness Act is passed 1970 The Clean Air Act is passed The first Earth Day is observed
The Environmental Protection Agency is created Rachel 1989 The Exxon Valdez oil spill occurs in Alaska 2006 Al Gore's An Inconvenient Truth is published 2011 The BP oil spill occurs in the Gulf of Mexico
