Question: when was the national day of prayer established
[{'answer': '1952', 'provenance': [{'wikipedia_id': '1805371', 'title': 'National Day of Prayer', 'start_paragraph_id': 2, 'start_character': 64, 'end_paragraph_id': 2, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1805371', 'title': 'National Day of Prayer', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 358, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16370817817944492874}, 'section': 'Section::::Abstract.'}]}]