Question: who was one of the first to chart the course of forgetting over time
[{'answer': 'Hermann Ebbinghaus', 'provenance': [{'wikipedia_id': '10967', 'title': 'Forgetting curve', 'start_paragraph_id': 4, 'start_character': 19, 'end_paragraph_id': 4, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '10967', 'title': 'Forgetting curve', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 906419543180218875}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10967', 'title': 'Forgetting curve', 'section': 'Section::::History.\n', 'start_paragraph_id': 4, 'end_paragraph_id': 4, 'meta': {'evidence_span': ['From 1880 to 1885, Hermann Ebbinghaus ran a limited, incomplete study on himself and published his hypothesis in 1885 as "" (later translated into English as "Memory: A Contribution to Experimental Psychology"). Ebbinghaus studied the memorisation of nonsense syllables, such as "WID" and "ZOF" (CVCs or Consonant-Vowel-Consonant) by repeatedly testing himself after various time periods and recording the results. He plotted these results on a graph creating what is now known as the "forgetting curve".', 'Ebbinghaus studied the memorisation of nonsense syllables, such as "WID" and "ZOF" (CVCs or Consonant-Vowel-Consonant) by repeatedly testing himself after various time periods and recording the results. He plotted these results on a graph creating what is now known as the "forgetting curve".']}}]}]