Question: when did atlanta become the capital of georgia
[{'answer': '1868', 'provenance': [{'wikipedia_id': '3138', 'title': 'Atlanta', 'start_paragraph_id': 12, 'start_character': 183, 'end_paragraph_id': 12, 'end_character': 187, 'bleu_score': 1.0, 'section': 'Section::::History.:Rebuilding the city.\n'}]}, {'provenance': [{'wikipedia_id': '3138', 'title': 'Atlanta', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 584, 'bleu_score': 0.6316065314906191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16819788795362852591}, 'section': 'Section::::History.:Rebuilding the city.\n'}]}]