Question: when was the first pair of glasses invented
[{'answer': 'about 1290', 'provenance': [{'wikipedia_id': '74844', 'title': 'Glasses', 'start_paragraph_id': 80, 'start_character': 74, 'end_paragraph_id': 80, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::History.:Invention.\n'}]}, {'provenance': [{'wikipedia_id': '74844', 'title': 'Glasses', 'start_paragraph_id': 81, 'start_character': 0, 'end_paragraph_id': 81, 'end_character': 370, 'bleu_score': 0.7570001178358521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9324564187437835879}, 'section': 'Section::::History.:Invention.\n'}]}]