Jon Postel American (1943-1998). Keeper of ARPANET RFCs, key to formation of ICANN (Internet Corporations for Assigned Names and Numbers). Part of UCLA contingent who formed ARPANET. Played key role in creating internet’s structure. From 1969 until his death, wrote, edited and catalogued RFCs (Requests for Comment), the papers that shaped the the internet. Central figure in practical operation of internet. With Vint Cerf, in 1972, Postel devised “socket number” tracking system for internet domains. With colleague Paul Mockapetris, created DNS (Domain Name System).