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For questions about "Known Space". It is the name given to the fictional universe and setting where many of Larry Niven's most popular novels take place, including his classic Ringworld.

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When is Larry Niven's 'World of Ptavvs' set?

Wikipedia suggests that Larry Niven's Known Space stories start around 2000 CE. I was reminded that, early in World of Ptavvs, the main character is having dinner with a visitor from West Germany (!) …
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