Question: in what year did east india officially become part of the british colonial empire course hero
[{'answer': '1858', 'provenance': [{'wikipedia_id': '4208015', 'title': 'British Raj', 'start_paragraph_id': 1, 'start_character': 143, 'end_paragraph_id': 1, 'end_character': 147, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4208015', 'title': 'British Raj', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 592, 'bleu_score': 0.528692935874407, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12237499226661733693}, 'section': 'Section::::Abstract.'}]}]