March 20 in Technology History: Standards, Patents and Breakthroughs

1970

On 20 March, RFC 37, Network Meeting Epilogue, etc., was published, recording early ARPANET design discussions, including process communication concepts that helped shape later socket-style abstractions and the culture of open technical memos in Internet engineering.

1970

On 20 March, RFC 38, Comments on Network Protocol from NWG/RFC #36, circulated, providing contemporaneous critique and clarification of proposed host-to-host protocol ideas in the formative ARPANET period and exemplifying rapid iterative review in early networking research and development.

1973

On 20 March, RFC 486, Data Transfer Revisited, was issued, revisiting data transfer approaches for packet networks and documenting engineering thinking at BBN during the ARPANET era, when reliability, flow control, and practical mechanisms were actively debated.