Question: when was the first horrible histories book published
[{'answer': 'June 1993', 'provenance': [{'wikipedia_id': '207078', 'title': 'Horrible Histories (book series)', 'start_paragraph_id': 2, 'start_character': 101, 'end_paragraph_id': 2, 'end_character': 110, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '207078', 'title': 'Horrible Histories (book series)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 347, 'bleu_score': 0.8631998346285771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6131960394746159494}, 'section': 'Section::::Abstract.'}]}]