Facebook went live 02/04/2004
Quote in the link below, “The Pentagon has pulled the plug on LifeLog, its stunningly ambitious effort to build a database tracking a person’s entire existence.Run by Darpa, the Defense Department’s research arm, LifeLog aimed to gather in a single place just about everything an individual says, sees or does: the phone calls made, the TV shows watched, the magazines read, the plane tickets bought, the e-mail sent and received.”
https://www.military.com/defensetech/2004/02/04/lifelog-dead
https://en.wikipedia.org/wiki/DARPA_LifeLog
Facebooks building 8 where Portal was developed is Run by former chief at DARPA
https://time.com/4294095/facebook-research-lab-building-8-darpa-regina-dugan/