Question: when was the first telescope used to observe space
[{'answer': '1609', 'provenance': [{'wikipedia_id': '213607', 'title': 'History of the telescope', 'start_paragraph_id': 21, 'start_character': 690, 'end_paragraph_id': 21, 'end_character': 694, 'bleu_score': 1.0, 'section': 'Section::::Optical telescopes.:Invention.:Spread through Europe.\n'}]}, {'provenance': [{'wikipedia_id': '213607', 'title': 'History of the telescope', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 726, 'bleu_score': 0.9839344367380701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10825836739771131512}, 'section': 'Section::::Optical telescopes.:Invention.:Spread through Europe.\n'}]}]