History 4,732,186
History and criticism 882,749
Histoire 228,641
Housing 74,147
Historiography 73,569
Human rights 70,633
History, Military 66,652
Histoire et critique 58,256
Holocaust, Jewish (1939-1945) 56,857
HISTORY 46,246
Handbooks, manuals, etc 39,383
Health 37,635
Health and hygiene 36,672
Hospitals 33,259
Homes and haunts 32,785
History of doctrines 29,938
Historic buildings 29,312
Harbors 27,780
Hebrew language 25,148
Hymns, English 25,102
History, Local 23,255
Historic sites 23,068
Historical geography 22,429
Health aspects 21,183
Hadith 20,611
Human ecology 20,363
Historians 20,282
Hasidism 19,787
Homosexuality 18,860
Health insurance 18,066
Hinduism 17,889
Human beings 17,426
HEALTH & FITNESS 17,307
History, Naval 16,661
Holocaust survivors 15,649
History, Modern 15,030
Horses 14,428
Humanities 13,543
Hermeneutics 13,384
Hotels 13,161
Hunting 12,617
History, Ancient 12,247
Hymns 12,233
Homes 12,225
Holidays 12,007
Human geography 11,583
Heart 11,194
Humanism 11,115
Hydrology 10,912
Home economics 10,909
Hygiene 10,890
Harpsichord music 10,805
Humor 10,786
Heads of state 10,778
Hasidim 10,543
Human anatomy 10,458
Heat 10,137
Housing policy 9,891
Home 9,481
Hours of labor 9,187
Heraldry 8,550
History of Medicine 8,520
Human Rights 8,191
Historia 8,187
Hispanic Americans 8,186
Heroes 8,042
Happiness 7,962
Households 7,956
High schools 7,622
Health Policy 7,620
Human body 7,513
History of Biblical events 7,457
Health facilities 7,447
Human-computer interaction 7,247
Handicraft 7,192
Hazardous substances 7,104
Haggadot 6,992
High school students 6,802
Husband and wife 6,647
Habad 6,456
Human-animal relationships 6,400
Hydraulic engineering 6,399
HIV infections 6,326
History, 20th Century 6,270
Hazardous wastes 6,228
Health surveys 6,179
Hindustani music 5,800
Human capital 5,614
Human evolution 5,558
Hebrew literature 5,545
Health care reform 5,541
Hanukkah 5,526
Hiking 5,506
Hardware 5,354
Historic preservation 5,317
Herbs 5,205
HISTORY / General 5,165
Housekeeping 5,130
Higher education and state 5,097
Hydrogeology 5,043