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Congratulations to Annys Shin, whose article on the National Aquarium (“Underwater Dive,” 1/5) chronicled that venerable institution deftly and accurately, save in two minor regards: The fight to save the aquarium began in March 1981. It was fought not by Midge Baldridge, who formed the National Aquarium Society a year later, but by citizen activists who picketed the aquarium to call attention to its plight. They carried signs with such slogans as “Don’t Let the Aquarium Flounder,” “Save Our Soles,” and “Why Pimp for Pandas But Skimp on Sharks?” The March 20, 1981, demonstration triggered heavy media coverage and a nationwide response that led the Interior Department in May 1981 to rescind its decision to close the aquarium.