Question: when did the august bank holiday change in england
[{'answer': '1971', 'provenance': [{'wikipedia_id': '158268', 'title': 'Bank holiday', 'start_paragraph_id': 13, 'start_character': 69, 'end_paragraph_id': 13, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '158268', 'title': 'Bank holiday', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 692, 'bleu_score': 0.9843125095516201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15632374222350224125}, 'section': 'Section::::History.\n'}]}]