Question: when was it made compulsory to go to school
[{'answer': '1918', 'provenance': [{'wikipedia_id': '9083795', 'title': 'History of education in the United States', 'start_paragraph_id': 63, 'start_character': 293, 'end_paragraph_id': 63, 'end_character': 297, 'bleu_score': 1.0, 'section': 'Section::::Federal era.:Attendance.:Compulsory laws.\n'}]}, {'provenance': [{'wikipedia_id': '9083795', 'title': 'History of education in the United States', 'start_paragraph_id': 63, 'start_character': 0, 'end_paragraph_id': 63, 'end_character': 358, 'bleu_score': 0.876484548290347, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11969748028958473829}, 'section': 'Section::::Federal era.:Attendance.:Compulsory laws.\n'}]}]