Question: when did veteran's day become a holiday
[{'answer': '1954', 'provenance': [{'wikipedia_id': '168341', 'title': 'Veterans Day', 'start_paragraph_id': 1, 'start_character': 651, 'end_paragraph_id': 1, 'end_character': 655, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '168341', 'title': 'Veterans Day', 'start_paragraph_id': 1, 'start_character': 47, 'end_paragraph_id': 1, 'end_character': 655, 'bleu_score': 0.7438553326535, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5081047514485198884}, 'section': 'Section::::Abstract.'}]}]