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St. Louis Superintendent William Torrey Harris tried to set up the first systematic educational programming for gifted students.
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Alfred Binet and Theodore Simon see the need to have test to determine giftedness and develop the idea of a "mental age".
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Leta Hollingworth publishes "The Gifted Child: Their Nature and Nurture". During this time, The Great Depression undercuts gifted education and favors a general or common standard of education for all.
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This ends "separate but equal education".
Ann Isaac establishes The National Association of Gifted education. -
This is the first formal document asking schools to give a broad definition of giftedness. This definition includes terms like visual and performing artist, leadership ability, creative and productive thinking.
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Howard Gardner introduces 7 different multiple intelligence types, that later becomes 8.
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Pre K- 12th Grade receive guidance for programs serving gifted and talented students.