American FootballBaseballBasketballBooksBusinessCelebrityCollege SportsComedyCultural CelebrationDancingEnglish FootballFashionFoodGamingIndian cinemaJournalismMoviesMusicPhilanthropyPoliticsRadioReligionSpaceSportTelevisionYearbook1 Facts About Porton Down 1. In 1970, the senior establishment at Porton Down was renamed the Chemical Defence Establishment for the next 21 years. FactSnippet No. 216,650 - en.wikipedia.org