Question: when did all courts become courts of equity
[{'answer': 'the 1870s', 'provenance': [{'wikipedia_id': '54024', 'title': 'Equity (law)', 'start_paragraph_id': 2, 'start_character': 305, 'end_paragraph_id': 2, 'end_character': 314, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '54024', 'title': 'Equity (law)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 566, 'bleu_score': 0.978606533029418, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2810689425009889516}, 'section': 'Section::::Abstract.'}]}]