Question: when was sunday made the official day of worship
[{'answer': 'By the 4th century', 'provenance': [{'wikipedia_id': '26671', 'title': 'Sabbath in Christianity', 'start_paragraph_id': 2, 'start_character': 453, 'end_paragraph_id': 2, 'end_character': 471, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26671', 'title': 'Sabbath in Christianity', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 569, 'bleu_score': 0.9615098218105691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15903927905957202141}, 'section': 'Section::::Abstract.'}]}]