1. 1961: Tarzan series, Edgar Rice Burroughs

Edgar Rice Burroughs’ classic series about a man living in the jungle was pulled from the shelves of a public library in the appropriately named town of Tarzana, Calif. Authorities thought the adventure stories unsuitable for youngsters, since there was no evidence that Tarzan and Jane had married before they started cohabiting in the treetops. Ralph Rothmund, who ran Burroughs’ estate, protested that the couple had taken marital vows in the jungle with Jane’s father serving as minister. “The father may not have been an ordained minister,” said Rothmund, “but after all things were primitive in those days in the jungle.”

2. 1969: The Dictionary

You might assume the dictionary is the least likely place a teen would search for illicit content, but school administrators in Alaska believed otherwise. Both American Heritage and Merriam Webster have been banned in various libraries and schools. In 1987, for example, the Anchorage School Board banned the American Heritage Dictionary for its “objectionable” entries — particularly slang words, including “bed,” “knocker,” and “balls.”