Question: when did the legend of santa claus begin
[{'answer': '1773', 'provenance': [{'wikipedia_id': '8720252', 'title': 'Santa Claus', 'start_paragraph_id': 20, 'start_character': 313, 'end_paragraph_id': 20, 'end_character': 317, 'bleu_score': 1.0, 'section': 'Section::::History.:Origins.\n'}]}, {'provenance': [{'wikipedia_id': '8720252', 'title': 'Santa Claus', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 555, 'bleu_score': 0.980097014099621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16005600384064708272}, 'section': 'Section::::History.:Origins.\n'}]}]