Question: when was bipolar disorder first recognized as a psychological disorder
[{'answer': 'German psychiatrist Karl Leonhard', 'provenance': [{'wikipedia_id': '7538869', 'title': 'History of bipolar disorder', 'start_paragraph_id': 16, 'start_character': 337, 'end_paragraph_id': 16, 'end_character': 370, 'bleu_score': 1.0, 'section': 'Section::::Progression from manic-depressive "reaction" to manic-depressive "illness".\n'}]}, {'provenance': [{'wikipedia_id': '7538869', 'title': 'History of bipolar disorder', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 513, 'bleu_score': 0.9738505480425671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9668934171776259739}, 'section': 'Section::::Progression from manic-depressive "reaction" to manic-depressive "illness".\n'}]}]