Clasificación de la Biblioteca del CongresoE171-183.9

17th century(251) 18th century(795) 19th century(1,297) American(1,995) American Military History(110) American presidency(76) American Presidents(1,256) American Revolution(891) American West(187) army(107) autobiography(544) biographies(214) biography(4,385) children(375) children's(491) civil rights(200) Constitution(125) culture(341) current events(146) curriculum(243) Early American History(89) education(879) elections(111) foreign relations(344) Founding Fathers(153) genealogy(288) geography(1,037) geopolitics(110) George Washington(219) government(893) Great Depression(202) historians(122) historiography(911) history(37,685) Howard Zinn(90) humor(1,608) imperialism(297) informational(204) international relations(584) John Adams(117) John Quincy Adams(94) juvenile non-fiction(123) Latin America(162) maps(264) Middle East(564) military(929) military history(1,314) modern(164) modern history(274) Monroe Doctrine(32) New Deal(90) North America(351) patriotic(85) patriotism(135) picture book(673) political science(853) politics(5,230) politics and government(201) presidency(174) presidential(158) reference(2,690) revolution(180) Richard Nixon(97) Russia(319) slavery(335) social history(208) social studies(1,216) sociology(312) Thomas Jefferson(183) travel(565) U.S. History(1,870) United States History(857) us(1,351) US politics(233) usa(7,750) Vietnam(239) war(892) War of 1812(185) Washington DC(140) women(445) Zinn(62)