SimilarityRank
historical_record 0.684 33052
archival_material 0.682 56811
primary_source 0.679 24613
oral_history 0.667 22319
historical_information 0.662 74789
historical_narrative 0.638 68629
historical_research 0.634 51289
rare_book 0.632 62476
historical 0.602 2399
historical_event 0.590 31250
archives 0.589 4595
official_document 0.588 50457
original_document 0.584 40652
government_document 0.583 62484
newspaper_clipping 0.569 65231
historical_fact 0.568 52001
research_material 0.565 53383
artifact 0.563 6086
historian 0.562 4549
legal_document 0.560 35663
archaeological 0.558 28440
biographical 0.554 57846
ephemeron 0.553 52654
archival 0.553 29318
newspaper_article 0.552 35167