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“It was subtle of God to learn Greek when he wanted to become an author—and not to learn it better,” cracked Nietzsche at a time when such mockery was genuinely scandalous. A century later, scholars have learned much more about the people (yup, people) who produced the sacred texts. University of Maryland professor Marvin Z. Zelkowitz will consider both historical and linguistic evidence when he discusses “Who Wrote the Bible’s Five Books of Moses?” The talk, sponsored by National Capital Area Skeptics, is at 2 p.m. at the Davis Library, 6400 Democracy Blvd., Bethesda. FREE. (301) 587-3837. (Mark Jenkins)