ology of dates involving the United States Office of Education's twenty regional educational laboratories. This laboratory program, he pointed out, was authorized on April 11, 1965 with the enactment of the Elementary and Secondary Education Act. By August of that year the office had issued guidelines for prospectuses which, in turn, were due in the office on October 15, 1965. By February of 1966 the first contracts for laboratories were negotiated and by September of 1966 twenty such laboratories were under operational or developmental contracts.
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David L. Clark (1976) studied this question.