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Born in Glendale, Ohio.
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At 5 years old she moved to Canada.
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Earned her Ph.D from the University of Toronto.
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Mary joined the Canadian Women's Army Corp during World War II.
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Got married to Leonard Ainsworth.
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She began doing longitudinal field study of mother-infant interaction.
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Mary and her husband divorced.
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Mary recieved the G. Stanley Hall Award from the APA for developmental psychology.
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The American Psychological Foundation gave Ainsworth the Gold Medal for Scientific Contributions.
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Mary Ainsworth died.
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