Question: where did the idea of retirement come from
[{'answer': 'the 18th century', 'provenance': [{'wikipedia_id': '26495', 'title': 'Retirement', 'start_paragraph_id': 6, 'start_character': 127, 'end_paragraph_id': 6, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]