content: the CCC is not like DEFCON, is more like a club/asociation/hacklab. The Chaos Comunication Congress is more like DEFCON. The Club  has being working since 1981 and the first congress took place in 1984.  The first DEFCON was in 1993.  Now this is the  Chaos Communication CAMP that is held every 4 years . If there is something  like a "pivot" of the hacker world as you said It started in europe probably germany. Its the same with hacklabs/hackerspaces[0]. [0]http://peerproduction.net/issues/issue-2/peer-reviewed-papers/hacklabs-and-hackerspaces/