Question: when was the old testament written in greek
[{'answer': '3rd century BCE', 'provenance': [{'wikipedia_id': '27915', 'title': 'Septuagint', 'start_paragraph_id': 1, 'start_character': 336, 'end_paragraph_id': 1, 'end_character': 351, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]