Women 277,463 World War, 1939-1945 253,454 World War, 1914-1918 121,412 Working class 64,951 World politics 56,913 Wages 46,642 War 45,275 Water-supply 44,169 Water 42,279 Women authors 38,583 Women's rights 27,489 Water resources development 27,362 Work 21,242 Writing 20,932 Women in literature 16,764 Waltzes 16,490 Water quality 16,391 Women and literature 15,062 World history 13,894 Wine and wine making 11,728 Wildlife conservation 11,669 Wounds and injuries 10,732 Witchcraft 10,417 Wealth 9,550 Wills 8,311 Wireless communication systems 8,300 Water quality management 8,130 Wit and humor 8,064 Women artists 8,044 Weather 7,677 Wars 7,286 Workers' compensation 7,157 Women in development 6,726 Weights and measures 6,545 Word formation 6,230 Women in art 6,104 Wool industry 6,016 Web sites 6,008 World maps 5,699 Wood 5,589 Welfare state 5,536 Wilderness areas 5,536 Work environment 5,489 Widows 5,464 War (International law) 5,371 War and society 5,267 Waka 5,053 Western influences 5,046 War on Terrorism, 2001-2009 5,011 Wheat 4,955 Wind quintets (Bassoon, clarinet, flute, horn, oboe) 4,934 Weapons 4,907 Women's studies 4,698 Water rights 4,543 Web site development 4,451 Wetlands 4,413 Women in Islam 4,376 Women detectives 4,310 World music 4,217 Will 4,097 Waste disposal 4,045 Women journalists 4,005 Weddings 3,999 Weapons systems 3,987 Welfare recipients 3,943 War and literature 3,941 War crime trials 3,889 Walking 3,838 Waterways 3,819 Warships 3,811 Water conservation 3,748 Women immigrants 3,736 War work 3,713 Worship 3,698 Watercolor painting 3,668 Whaling 3,659 Wildlife management 3,630 Watershed management 3,578 Wood-engraving 3,559 Work and family 3,501 Wildlife refuges 3,466 Water-power 3,445 Women in politics 3,418 Wives 3,382 Winds 3,376 World Wide Web 3,348 Witnesses 3,289 Women prisoners 3,235 Warfare 3,230 Women in the Bible 3,188 Women in Christianity 3,128 War crimes 3,093 Wood-carving 3,082 Wounds and Injuries 3,048 Women and religion 3,021 Wholesale trade 3,009 Western stories 3,007 Waste in government spending 2,975 Women college students 2,938 War criminals 2,864