Exactly, by the time this book existed 2100 years ago, the idea should have been... | Hacker News

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ekianjo on March 25, 2017 | parent | context | favorite | on: Pythagorean Theorem proof in a 2100 year old Chine...

Exactly, by the time this book existed 2100 years ago, the idea should have been traveling all over the place anyway. It's not like ancient civilizations were not connected at all.

pjmlp on March 25, 2017 [–]

Yes, people travelled a lot, specially merchants, that is also how Alexandria got many of its manuscripts.

The biggest difference was that nothing was assured about the safety of the travel.

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