Question: when did the battle of king's mountain take place
[{'answer': 'October 7 , 1780', 'provenance': [{'wikipedia_id': '698848', 'title': 'Battle of Kings Mountain', 'start_paragraph_id': 12, 'start_character': 447, 'end_paragraph_id': 12, 'end_character': 463, 'bleu_score': 1.0, 'section': 'Section::::Prelude to battle.:Pursuit of Shelby.\n'}]}]