There are three criteria according to which people define themselves as Jewish: by religion, by culture and by ancestry. Believers in Judaism are considered Jewish; attachment, observance of traditions, norms, cultural values, knowledge of history make it for the second criterium; and if somebody´s genealogy includes Jewish ancestors, so that person is seen as a Jew, too.
Answer: U.S. Jews see being Jewish as more a matter of ancestry, culture and values than of religious observance. Six-in-ten say, for example, that being Jewish is mainly a matter of culture or ancestry, compared with 15% who say it is mainly a matter of religion.
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