Question: when was the first federal special education law passed
[{'answer': '1975', 'provenance': [{'wikipedia_id': '4768636', 'title': 'Special education in the United States', 'start_paragraph_id': 1, 'start_character': 623, 'end_paragraph_id': 1, 'end_character': 627, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4768636', 'title': 'Special education in the United States', 'start_paragraph_id': 1, 'start_character': 552, 'end_paragraph_id': 1, 'end_character': 1264, 'bleu_score': 0.9810405040225261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7113341621468083380}, 'section': 'Section::::Abstract.'}]}]