Denmark , with its social equality and peaceful atmosphere, is the happiest country in the world, researchers said. Imbabwe , torn by political and social strife, is the least happy, while the world's richest nation, the United States, ranks 16th. Overall, the world is getting happier, according to the U.S. government-funded World Values Survey, done regularly by a global network of social scientists. It found increased happiness from 1981 to 2007 in 45 of 52 countries analyzed. "I strongly suspect that there is a strong correlation between peace and happiness," said Ronald Inglehart, a political scientist at the University of Michigan's Institute for Social Research, who directed the study."Denmark is prosperous -- not the richest country in the world but it is prosperous." Equality/noun/: equal state; sameness برابري، تساوي Peaceful/adjective/: peace-loving, nonviolent; calm مسالمت آميز، آرام، صلح آميز Regularly/adverb/: at fixed intervals, at evenly-spaced intervals منظم، باقاعده Global/adjective/: worldwide, universal, of the whole world; like a globe كروي، جهاني ، سراسري Correlation/noun/: mutual relation, mutual connection (between two or more things) همبستگي
