The last email from Satoshi Nakamoto is from Sat, Apr 23, 2011 at 3:40 PM
The announcement on bitcointalk forum that Gavin Andresen is going to do a presentation for CIA about Bitcoin is from April 27, 2011, 07:00:26 PM.
Satoshi email
Gavin CIA thread
Gmail - Holding coins in an unspendable state for a rolling time window
Gavin will visit the CIA
Gavin will visit the CIA
