Question: land contained in the current state of nevada was acquired by the u.s. in
[{'answer': 'October 31 , 1864', 'provenance': [{'wikipedia_id': '21216', 'title': 'Nevada', 'start_paragraph_id': 41, 'start_character': 479, 'end_paragraph_id': 41, 'end_character': 496, 'bleu_score': 1.0, 'section': 'Section::::History.:Statehood (1864).\n'}]}]