The idea of copyright did not exist in ancient times, when authors frequently copied other authors at length in works of non-fiction. This practice w… - Richard Stallman

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The idea of copyright did not exist in ancient times, when authors frequently copied other authors at length in works of non-fiction. This practice was useful, and is the only way many authors' works have survived even in part. The copyright system was created expressly for the purpose of encouraging authorship. In the domain for which it was invented — books, which could be copied economically only on a printing press — it did little harm, and did not obstruct most of the individuals who read the books.