History 4,728,692 History and criticism 881,956 Histoire 226,062 Housing 74,121 Historiography 73,500 Human rights 70,496 History, Military 66,610 Histoire et critique 57,733 Holocaust, Jewish (1939-1945) 56,817 HISTORY 46,084 Handbooks, manuals, etc 39,375 Health 37,603 Health and hygiene 36,655 Hospitals 33,253 Homes and haunts 32,762 History of doctrines 29,927 Historic buildings 29,292 Harbors 27,774 Hebrew language 25,141 Hymns, English 25,102 History, Local 23,247 Historic sites 23,049 Historical geography 22,412 Health aspects 21,175 Hadith 20,595 Human ecology 20,348 Historians 20,270 Hasidism 19,785 Homosexuality 18,848 Health insurance 18,057 Hinduism 17,870 Human beings 17,424 HEALTH & FITNESS 17,304 History, Naval 16,651 Holocaust survivors 15,643 History, Modern 15,016 Horses 14,426 Humanities 13,535 Hermeneutics 13,376 Hotels 13,151 Hunting 12,612 History, Ancient 12,245 Hymns 12,230 Homes 12,197 Holidays 12,004 Human geography 11,580 Heart 11,194 Humanism 11,109 Hydrology 10,910 Home economics 10,908 Hygiene 10,887 Harpsichord music 10,800 Humor 10,780 Heads of state 10,759 Hasidim 10,540 Human anatomy 10,443 Heat 10,136 Housing policy 9,876 Home 9,480 Hours of labor 9,185 Heraldry 8,544 History of Medicine 8,515 Human Rights 8,187 Hispanic Americans 8,185 Historia 8,179 Heroes 8,036 Happiness 7,959 Households 7,952 High schools 7,618 Health Policy 7,616 Human body 7,494 History of Biblical events 7,457 Health facilities 7,446 Human-computer interaction 7,240 Handicraft 7,188 Hazardous substances 7,104 Haggadot 6,982 High school students 6,797 Husband and wife 6,639 Habad 6,455 Human-animal relationships 6,393 Hydraulic engineering 6,388 HIV infections 6,326 History, 20th Century 6,268 Hazardous wastes 6,223 Health surveys 6,177 Hindustani music 5,788 Human capital 5,613 Human evolution 5,558 Hebrew literature 5,544 Health care reform 5,535 Hanukkah 5,524 Hiking 5,505 Hardware 5,355 Historic preservation 5,302 Herbs 5,204 HISTORY / General 5,163 Housekeeping 5,130 Higher education and state 5,097 Hydrogeology 5,041