Question: when was adolescence first considered a period of development
[{'answer': '1904', 'provenance': [{'wikipedia_id': '83859', 'title': 'Adolescence', 'start_paragraph_id': 65, 'start_character': 106, 'end_paragraph_id': 65, 'end_character': 110, 'bleu_score': 1.0, 'section': 'Section::::Psychological development.\n'}]}, {'provenance': [{'wikipedia_id': '83859', 'title': 'Adolescence', 'start_paragraph_id': 65, 'start_character': 0, 'end_paragraph_id': 65, 'end_character': 1368, 'bleu_score': 0.9900741345671201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15053286868096702788}, 'section': 'Section::::Psychological development.\n'}]}]