Paul Graham on Twitter: "One thing most people don't realize about the vikings is how deeply their raids penetrated. It wasn't just coastal areas. Their ships were remarkably well adapted to both sea and river. They went anywhere there was gold.… https://t.co/8UMdNGJeEA"

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1. Paul Graham‏Verified account @paulg 17 Sep 2020
  I remember seeing a tomb in Auxerre that had been walled up to protect it from viking raids. Auxerre is right in the middle of France. But that didn't matter if there was a river nearby.pic.twitter.com/L8tAz1Z1VU
  
  11 replies 7 retweets 192 likes
  
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1. NDR, SHORT TUR Capital‏ @NegDiscountRt 17 Sep 2020
  Replying to @paulg
  
  But did they invent surnames by referring to each other by their birth cities? Sven from Stockholm?
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1. Cyril ‏ @CyrilNotes 17 Sep 2020
  Replying to @paulg
  
  I haven't seen a map that so neatly illustrates how they followed rivers through Europe. Very cool!
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1. Hubert Łępicki ‏ @hubertlepicki 17 Sep 2020
  Replying to @paulg
  
  and this map is incomplete. They went as far as Turkey.
  
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1. David Sun‏ @bearmace 17 Sep 2020
  Replying to @paulg
  
  I come from the land of the ice and snow...
  
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1. StopYourLimits‏ @limits_stop 17 Sep 2020
  Replying to @paulg
  
  The map doesn't show Southern Spain and Sicily, but they went there, too.
  
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1. Stoo Goff‏ @stoogoff 17 Sep 2020
  Replying to @paulg
  
  Their ships were also quite light, so they would happily sail up one river then carry the ship over land to another river and carry on raiding.
  
  1 retweet 5 likes
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1. DigitalCare‏ @elf_tech1 17 Sep 2020
  Replying to @paulg
  
  Believe Viking ships reached America centuries before Columbus (end of 10th century)
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