1981 - 1983 - 1995 - 1999 - 2002 - 2009 Paper and metal money was anonymous money - its bearer, however they got their hands on it, was its owner - (for the most part). 1981, networks were coming, wallets were following. When? David Chaum wrote "Untraceable Electronic Mail, Return Addresses, and Digital Pseudonyms", then in 1982, "Computer Systems Established, Maintained, and Trusted by Mutually Suspicious Groups". Networks for the people, years away. Even if facing the right direction, you c...