Dictionaries History -- 2 Military history -- 2 20th century -- 1 Civilization -- 1 Developing countries -- 1 Diplomatic history -- 1 more ... English language -- 1 Etymology -- 1 Geography -- 1 Historians -- 1 History, Local -- 1 History, Modern -- 1 Names -- 1 Names, Geographical -- 1 Peace -- 1 Peace of Westphalia (1648) -- 1 Quotations -- 1 Quotations, maxims, etc -- 1 Thirty Years' War, 1618-1648 -- 1 less ...