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will visit the usda center where in 1941 scientists discovered how to mass-produce penicillin saving thousands of allied lives in world war ii. the c-span cities tour of on book tv.nois sunday afternoon at 2:00 on american history tv on c-span 3, working with cable affiliates and visiting cities across the country. >> next "american history tv's reel america," from 1945, "the negro sailor." this 26-minute u.s. navy film follows a draftee through boot camp and an assignment in the pacific. completed after the surrender of