In 1998, Congress passed the Sonny Bono Copyright Act, AKA the Mickey Mouse Preservation Act, AKA the Copyright Term Extension Act. The 1998 Act tacked *another* 20 years onto copyright terms, but not just for works that were still in copyright. At the insistence of Disney, Congress actually yanked works *out of the public domain* - works that had been anthologized, adapted and re-issued - and put them *back* into copyright for two more decades.
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