character: John Muir
topic: Development of the National Parks system influenced by Transcendentalist ideals
grade: 11
subject: Science
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character: Ralph Waldo Emerson
topic: Influence on John Muir's philosophy of nature
grade: 11
subject: Science
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character: Henry David Thoreau
topic: Transcendentalist principles and their impact on conservation
grade: 11
subject: Science
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character: Theodore Roosevelt
topic: Advancements in the National Parks system and conservation efforts
grade: 11
subject: Science
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