SimilarityRank
U.S._history 0.820 74846
world_history 0.700 28733
European_history 0.685 79644
in_American_history 0.666 33694
American_literature 0.654 78300
World_history 0.654 92874
history 0.641 354
the_American_revolution 0.641 61560
military_history 0.625 45278
modern_history 0.624 93951
the_American_Civil_War 0.622 99889
the_Civil_War 0.622 11655
political_history 0.622 61414
cultural_history 0.621 33672
American_politics 0.619 72074
Jewish_history 0.604 58258
American_government 0.597 96293
the_Civil_Rights_Movement 0.595 62659
history_lesson 0.589 90908
our_history 0.575 12200
American_Literature 0.575 97833
social_study 0.573 20655
American_culture 0.572 27826
music_history 0.572 86096
civics 0.567 66474